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Finding the Fourth Proportional to 229,318.38, 316,448.78 and 127,350.32

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Solution

The fourth proportional to 229,318.38, 316,448.78 and 127,350.32 is: 175,737.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,318.38 : 316,448.78 = 127,350.32 : x
  2. Step 2: Convert to fraction form
    229,318.38/316,448.78 = 127,350.32/x
  3. Step 3: Cross multiply
    229,318.38x = 316,448.78 × 127,350.32
  4. Step 4: Simplify right side
    229,318.38x = 40,299,851,177.61
  5. Step 5: Solve for x
    x = 40,299,851,177.61/229,318.38
  6. Step 6: Final answer
    x = 175,737.55

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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.