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Finding the Fourth Proportional to 637.18, 955.96 and 267.16

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Solution

The fourth proportional to 637.18, 955.96 and 267.16 is: 400.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    637.18 : 955.96 = 267.16 : x
  2. Step 2: Convert to fraction form
    637.18/955.96 = 267.16/x
  3. Step 3: Cross multiply
    637.18x = 955.96 × 267.16
  4. Step 4: Simplify right side
    637.18x = 255,394.27
  5. Step 5: Solve for x
    x = 255,394.27/637.18
  6. Step 6: Final answer
    x = 400.82

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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.