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Finding the Fourth Proportional to 324,972.68, 487,468.86 and 88,320.36

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Solution

The fourth proportional to 324,972.68, 487,468.86 and 88,320.36 is: 132,483.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,972.68 : 487,468.86 = 88,320.36 : x
  2. Step 2: Convert to fraction form
    324,972.68/487,468.86 = 88,320.36/x
  3. Step 3: Cross multiply
    324,972.68x = 487,468.86 × 88,320.36
  4. Step 4: Simplify right side
    324,972.68x = 43,053,425,203.99
  5. Step 5: Solve for x
    x = 43,053,425,203.99/324,972.68
  6. Step 6: Final answer
    x = 132,483.21

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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.