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Finding the Fourth Proportional to 637.76, 956.04 and 313.04

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Solution

The fourth proportional to 637.76, 956.04 and 313.04 is: 469.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    637.76 : 956.04 = 313.04 : x
  2. Step 2: Convert to fraction form
    637.76/956.04 = 313.04/x
  3. Step 3: Cross multiply
    637.76x = 956.04 × 313.04
  4. Step 4: Simplify right side
    637.76x = 299,278.76
  5. Step 5: Solve for x
    x = 299,278.76/637.76
  6. Step 6: Final answer
    x = 469.27

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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.