Home / 458,116.80-687,175.20-192,177.60

Finding the Fourth Proportional to 458,116.80, 687,175.20 and 192,177.60

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Solution

The fourth proportional to 458,116.80, 687,175.20 and 192,177.60 is: 288,266.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,116.80 : 687,175.20 = 192,177.60 : x
  2. Step 2: Convert to fraction form
    458,116.80/687,175.20 = 192,177.60/x
  3. Step 3: Cross multiply
    458,116.80x = 687,175.20 × 192,177.60
  4. Step 4: Simplify right side
    458,116.80x = 132,059,680,715.52
  5. Step 5: Solve for x
    x = 132,059,680,715.52/458,116.80
  6. Step 6: Final answer
    x = 288,266.40

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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.