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Finding the Fourth Proportional to 288,586.28, 432,936.83 and 88,898.15

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Solution

The fourth proportional to 288,586.28, 432,936.83 and 88,898.15 is: 133,364.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,586.28 : 432,936.83 = 88,898.15 : x
  2. Step 2: Convert to fraction form
    288,586.28/432,936.83 = 88,898.15/x
  3. Step 3: Cross multiply
    288,586.28x = 432,936.83 × 88,898.15
  4. Step 4: Simplify right side
    288,586.28x = 38,487,283,253.86
  5. Step 5: Solve for x
    x = 38,487,283,253.86/288,586.28
  6. Step 6: Final answer
    x = 133,364.91

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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.