Home / 215,215.44-296,874.36-129,151.32

Finding the Fourth Proportional to 215,215.44, 296,874.36 and 129,151.32

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Solution

The fourth proportional to 215,215.44, 296,874.36 and 129,151.32 is: 178,155.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,215.44 : 296,874.36 = 129,151.32 : x
  2. Step 2: Convert to fraction form
    215,215.44/296,874.36 = 129,151.32/x
  3. Step 3: Cross multiply
    215,215.44x = 296,874.36 × 129,151.32
  4. Step 4: Simplify right side
    215,215.44x = 38,341,715,468.16
  5. Step 5: Solve for x
    x = 38,341,715,468.16/215,215.44
  6. Step 6: Final answer
    x = 178,155.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.