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Finding the Fourth Proportional to 288,997.52, 433,537.68 and 89,335.28

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Solution

The fourth proportional to 288,997.52, 433,537.68 and 89,335.28 is: 134,015.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,997.52 : 433,537.68 = 89,335.28 : x
  2. Step 2: Convert to fraction form
    288,997.52/433,537.68 = 89,335.28/x
  3. Step 3: Cross multiply
    288,997.52x = 433,537.68 × 89,335.28
  4. Step 4: Simplify right side
    288,997.52x = 38,730,210,033.35
  5. Step 5: Solve for x
    x = 38,730,210,033.35/288,997.52
  6. Step 6: Final answer
    x = 134,015.72

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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.