Home / 262,962-394,443-87,858

Finding the Fourth Proportional to 262,962, 394,443 and 87,858

Calculator

Solution

The fourth proportional to 262,962, 394,443 and 87,858 is: 131,787

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,962 : 394,443 = 87,858 : x
  2. Step 2: Convert to fraction form
    262,962/394,443 = 87,858/x
  3. Step 3: Cross multiply
    262,962x = 394,443 × 87,858
  4. Step 4: Simplify right side
    262,962x = 34,654,973,094
  5. Step 5: Solve for x
    x = 34,654,973,094/262,962
  6. Step 6: Final answer
    x = 131,787

Related Problems

Find fourth proportional to 131,481, 197,221.50 and 43,929
Half scale
Find fourth proportional to 525,924, 788,886 and 175,716
Double scale
Find fourth proportional to 262,963, 394,444.50 and 87,859
Similar ratio
Find fourth proportional to 394,443, 591,664.50 and 131,787
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.