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Finding the Fourth Proportional to 637.38, 956.37 and 312.57

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Solution

The fourth proportional to 637.38, 956.37 and 312.57 is: 469.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    637.38 : 956.37 = 312.57 : x
  2. Step 2: Convert to fraction form
    637.38/956.37 = 312.57/x
  3. Step 3: Cross multiply
    637.38x = 956.37 × 312.57
  4. Step 4: Simplify right side
    637.38x = 298,932.57
  5. Step 5: Solve for x
    x = 298,932.57/637.38
  6. Step 6: Final answer
    x = 469.00

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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.