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Finding the Fourth Proportional to 204,419.60, 306,507.90 and 125,590.40

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Solution

The fourth proportional to 204,419.60, 306,507.90 and 125,590.40 is: 188,310.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,419.60 : 306,507.90 = 125,590.40 : x
  2. Step 2: Convert to fraction form
    204,419.60/306,507.90 = 125,590.40/x
  3. Step 3: Cross multiply
    204,419.60x = 306,507.90 × 125,590.40
  4. Step 4: Simplify right side
    204,419.60x = 38,494,449,764.16
  5. Step 5: Solve for x
    x = 38,494,449,764.16/204,419.60
  6. Step 6: Final answer
    x = 188,310.95

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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.