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Finding the Fourth Proportional to 635,818.95, 953,689.79 and 225,508.59

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Solution

The fourth proportional to 635,818.95, 953,689.79 and 225,508.59 is: 338,249.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,818.95 : 953,689.79 = 225,508.59 : x
  2. Step 2: Convert to fraction form
    635,818.95/953,689.79 = 225,508.59/x
  3. Step 3: Cross multiply
    635,818.95x = 953,689.79 × 225,508.59
  4. Step 4: Simplify right side
    635,818.95x = 215,065,239,840.30
  5. Step 5: Solve for x
    x = 215,065,239,840.30/635,818.95
  6. Step 6: Final answer
    x = 338,249.18

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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.