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Finding the Fourth Proportional to 288,286.53, 432,471.13 and 88,623.66

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Solution

The fourth proportional to 288,286.53, 432,471.13 and 88,623.66 is: 132,948.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,286.53 : 432,471.13 = 88,623.66 : x
  2. Step 2: Convert to fraction form
    288,286.53/432,471.13 = 88,623.66/x
  3. Step 3: Cross multiply
    288,286.53x = 432,471.13 × 88,623.66
  4. Step 4: Simplify right side
    288,286.53x = 38,327,174,384.94
  5. Step 5: Solve for x
    x = 38,327,174,384.94/288,286.53
  6. Step 6: Final answer
    x = 132,948.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.