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Finding the Fourth Proportional to 382,687.80, 574,250.40 and 146,200.20

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Solution

The fourth proportional to 382,687.80, 574,250.40 and 146,200.20 is: 219,383.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,687.80 : 574,250.40 = 146,200.20 : x
  2. Step 2: Convert to fraction form
    382,687.80/574,250.40 = 146,200.20/x
  3. Step 3: Cross multiply
    382,687.80x = 574,250.40 × 146,200.20
  4. Step 4: Simplify right side
    382,687.80x = 83,955,523,330.08
  5. Step 5: Solve for x
    x = 83,955,523,330.08/382,687.80
  6. Step 6: Final answer
    x = 219,383.85

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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.