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Finding the Fourth Proportional to 288,031.52, 432,127.44 and 88,358.36

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Solution

The fourth proportional to 288,031.52, 432,127.44 and 88,358.36 is: 132,562.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,031.52 : 432,127.44 = 88,358.36 : x
  2. Step 2: Convert to fraction form
    288,031.52/432,127.44 = 88,358.36/x
  3. Step 3: Cross multiply
    288,031.52x = 432,127.44 × 88,358.36
  4. Step 4: Simplify right side
    288,031.52x = 38,182,071,909.40
  5. Step 5: Solve for x
    x = 38,182,071,909.40/288,031.52
  6. Step 6: Final answer
    x = 132,562.13

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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.