Home / 842-1,263.08-234

Finding the Fourth Proportional to 842, 1,263.08 and 234

Calculator

Solution

The fourth proportional to 842, 1,263.08 and 234 is: 351.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    842 : 1,263.08 = 234 : x
  2. Step 2: Convert to fraction form
    842/1,263.08 = 234/x
  3. Step 3: Cross multiply
    842x = 1,263.08 × 234
  4. Step 4: Simplify right side
    842x = 295,560.72
  5. Step 5: Solve for x
    x = 295,560.72/842
  6. Step 6: Final answer
    x = 351.02

Related Problems

Find fourth proportional to 421, 631.54 and 117
Half scale
Find fourth proportional to 1,684, 2,526.16 and 468
Double scale
Find fourth proportional to 843, 1,264.58 and 235
Similar ratio
Find fourth proportional to 1,263, 1,894.62 and 351
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.