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Finding the Fourth Proportional to 204,517.80, 306,776.70 and 141,532.20

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Solution

The fourth proportional to 204,517.80, 306,776.70 and 141,532.20 is: 212,298.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,517.80 : 306,776.70 = 141,532.20 : x
  2. Step 2: Convert to fraction form
    204,517.80/306,776.70 = 141,532.20/x
  3. Step 3: Cross multiply
    204,517.80x = 306,776.70 × 141,532.20
  4. Step 4: Simplify right side
    204,517.80x = 43,418,781,259.74
  5. Step 5: Solve for x
    x = 43,418,781,259.74/204,517.80
  6. Step 6: Final answer
    x = 212,298.30

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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.