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Finding the Fourth Proportional to 634.08, 950.14 and 427.88

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Solution

The fourth proportional to 634.08, 950.14 and 427.88 is: 641.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    634.08 : 950.14 = 427.88 : x
  2. Step 2: Convert to fraction form
    634.08/950.14 = 427.88/x
  3. Step 3: Cross multiply
    634.08x = 950.14 × 427.88
  4. Step 4: Simplify right side
    634.08x = 406,545.90
  5. Step 5: Solve for x
    x = 406,545.90/634.08
  6. Step 6: Final answer
    x = 641.16

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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.