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Finding the Fourth Proportional to 322,801.24, 484,201.90 and 86,144.76

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Solution

The fourth proportional to 322,801.24, 484,201.90 and 86,144.76 is: 129,217.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,801.24 : 484,201.90 = 86,144.76 : x
  2. Step 2: Convert to fraction form
    322,801.24/484,201.90 = 86,144.76/x
  3. Step 3: Cross multiply
    322,801.24x = 484,201.90 × 86,144.76
  4. Step 4: Simplify right side
    322,801.24x = 41,711,456,467.04
  5. Step 5: Solve for x
    x = 41,711,456,467.04/322,801.24
  6. Step 6: Final answer
    x = 129,217.15

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1.5x scale

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.