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Finding the Fourth Proportional to 385,062.05, 577,470.21 and 132,281.58

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Solution

The fourth proportional to 385,062.05, 577,470.21 and 132,281.58 is: 198,380.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,062.05 : 577,470.21 = 132,281.58 : x
  2. Step 2: Convert to fraction form
    385,062.05/577,470.21 = 132,281.58/x
  3. Step 3: Cross multiply
    385,062.05x = 577,470.21 × 132,281.58
  4. Step 4: Simplify right side
    385,062.05x = 76,388,671,781.73
  5. Step 5: Solve for x
    x = 76,388,671,781.73/385,062.05
  6. Step 6: Final answer
    x = 198,380.16

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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.