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Finding the Fourth Proportional to 229,755.39, 317,059.61 and 129,153.39

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Solution

The fourth proportional to 229,755.39, 317,059.61 and 129,153.39 is: 178,230.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,755.39 : 317,059.61 = 129,153.39 : x
  2. Step 2: Convert to fraction form
    229,755.39/317,059.61 = 129,153.39/x
  3. Step 3: Cross multiply
    229,755.39x = 317,059.61 × 129,153.39
  4. Step 4: Simplify right side
    229,755.39x = 40,949,323,463.58
  5. Step 5: Solve for x
    x = 40,949,323,463.58/229,755.39
  6. Step 6: Final answer
    x = 178,230.09

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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.