Home / 224,511.20-309,878.64-129,073.34

Finding the Fourth Proportional to 224,511.20, 309,878.64 and 129,073.34

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Solution

The fourth proportional to 224,511.20, 309,878.64 and 129,073.34 is: 178,151.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,511.20 : 309,878.64 = 129,073.34 : x
  2. Step 2: Convert to fraction form
    224,511.20/309,878.64 = 129,073.34/x
  3. Step 3: Cross multiply
    224,511.20x = 309,878.64 × 129,073.34
  4. Step 4: Simplify right side
    224,511.20x = 39,997,071,059.46
  5. Step 5: Solve for x
    x = 39,997,071,059.46/224,511.20
  6. Step 6: Final answer
    x = 178,151.79

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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.