Home / 272,215.92-408,323.88-85,242

Finding the Fourth Proportional to 272,215.92, 408,323.88 and 85,242

Calculator

Solution

The fourth proportional to 272,215.92, 408,323.88 and 85,242 is: 127,863

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,215.92 : 408,323.88 = 85,242 : x
  2. Step 2: Convert to fraction form
    272,215.92/408,323.88 = 85,242/x
  3. Step 3: Cross multiply
    272,215.92x = 408,323.88 × 85,242
  4. Step 4: Simplify right side
    272,215.92x = 34,806,344,178.96
  5. Step 5: Solve for x
    x = 34,806,344,178.96/272,215.92
  6. Step 6: Final answer
    x = 127,863

Related Problems

Find fourth proportional to 136,107.96, 204,161.94 and 42,621
Half scale
Find fourth proportional to 544,431.84, 816,647.76 and 170,484
Double scale
Find fourth proportional to 272,216.92, 408,325.38 and 85,243
Similar ratio
Find fourth proportional to 408,323.88, 612,485.82 and 127,863
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.