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Finding the Fourth Proportional to 229,950, 317,331.36 and 129,348

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Solution

The fourth proportional to 229,950, 317,331.36 and 129,348 is: 178,500.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,950 : 317,331.36 = 129,348 : x
  2. Step 2: Convert to fraction form
    229,950/317,331.36 = 129,348/x
  3. Step 3: Cross multiply
    229,950x = 317,331.36 × 129,348
  4. Step 4: Simplify right side
    229,950x = 41,046,176,753.28
  5. Step 5: Solve for x
    x = 41,046,176,753.28/229,950
  6. Step 6: Final answer
    x = 178,500.44

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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.