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Finding the Fourth Proportional to 417,974.20, 626,877.48 and 204,650.20

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Solution

The fourth proportional to 417,974.20, 626,877.48 and 204,650.20 is: 306,934.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,974.20 : 626,877.48 = 204,650.20 : x
  2. Step 2: Convert to fraction form
    417,974.20/626,877.48 = 204,650.20/x
  3. Step 3: Cross multiply
    417,974.20x = 626,877.48 × 204,650.20
  4. Step 4: Simplify right side
    417,974.20x = 128,290,601,657.50
  5. Step 5: Solve for x
    x = 128,290,601,657.50/417,974.20
  6. Step 6: Final answer
    x = 306,934.26

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Double scale
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Similar ratio
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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.