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Finding the Fourth Proportional to 236,472.72, 326,339.28 and 129,049.66

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Solution

The fourth proportional to 236,472.72, 326,339.28 and 129,049.66 is: 178,092.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,472.72 : 326,339.28 = 129,049.66 : x
  2. Step 2: Convert to fraction form
    236,472.72/326,339.28 = 129,049.66/x
  3. Step 3: Cross multiply
    236,472.72x = 326,339.28 × 129,049.66
  4. Step 4: Simplify right side
    236,472.72x = 42,113,971,700.91
  5. Step 5: Solve for x
    x = 42,113,971,700.91/236,472.72
  6. Step 6: Final answer
    x = 178,092.31

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