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Finding the Fourth Proportional to 369,572.47, 554,358.30 and 89,089.72

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Solution

The fourth proportional to 369,572.47, 554,358.30 and 89,089.72 is: 133,634.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,572.47 : 554,358.30 = 89,089.72 : x
  2. Step 2: Convert to fraction form
    369,572.47/554,358.30 = 89,089.72/x
  3. Step 3: Cross multiply
    369,572.47x = 554,358.30 × 89,089.72
  4. Step 4: Simplify right side
    369,572.47x = 49,387,625,726.68
  5. Step 5: Solve for x
    x = 49,387,625,726.68/369,572.47
  6. Step 6: Final answer
    x = 133,634.48

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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.