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Finding the Fourth Proportional to 288,585.78, 432,926.01 and 88,901.70

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Solution

The fourth proportional to 288,585.78, 432,926.01 and 88,901.70 is: 133,367.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,585.78 : 432,926.01 = 88,901.70 : x
  2. Step 2: Convert to fraction form
    288,585.78/432,926.01 = 88,901.70/x
  3. Step 3: Cross multiply
    288,585.78x = 432,926.01 × 88,901.70
  4. Step 4: Simplify right side
    288,585.78x = 38,487,858,263.22
  5. Step 5: Solve for x
    x = 38,487,858,263.22/288,585.78
  6. Step 6: Final answer
    x = 133,367.13

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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.