Home / 204,024.30-306,036.45-129,228.90

Finding the Fourth Proportional to 204,024.30, 306,036.45 and 129,228.90

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Solution

The fourth proportional to 204,024.30, 306,036.45 and 129,228.90 is: 193,843.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,024.30 : 306,036.45 = 129,228.90 : x
  2. Step 2: Convert to fraction form
    204,024.30/306,036.45 = 129,228.90/x
  3. Step 3: Cross multiply
    204,024.30x = 306,036.45 × 129,228.90
  4. Step 4: Simplify right side
    204,024.30x = 39,548,753,793.41
  5. Step 5: Solve for x
    x = 39,548,753,793.41/204,024.30
  6. Step 6: Final answer
    x = 193,843.35

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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.