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Finding the Fourth Proportional to 324,952.88, 487,384.20 and 100,320.71

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Solution

The fourth proportional to 324,952.88, 487,384.20 and 100,320.71 is: 150,467.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,952.88 : 487,384.20 = 100,320.71 : x
  2. Step 2: Convert to fraction form
    324,952.88/487,384.20 = 100,320.71/x
  3. Step 3: Cross multiply
    324,952.88x = 487,384.20 × 100,320.71
  4. Step 4: Simplify right side
    324,952.88x = 48,894,726,549.86
  5. Step 5: Solve for x
    x = 48,894,726,549.86/324,952.88
  6. Step 6: Final answer
    x = 150,467.13

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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.