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Finding the Fourth Proportional to 637.54, 955.51 and 345.04

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Solution

The fourth proportional to 637.54, 955.51 and 345.04 is: 517.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    637.54 : 955.51 = 345.04 : x
  2. Step 2: Convert to fraction form
    637.54/955.51 = 345.04/x
  3. Step 3: Cross multiply
    637.54x = 955.51 × 345.04
  4. Step 4: Simplify right side
    637.54x = 329,685.92
  5. Step 5: Solve for x
    x = 329,685.92/637.54
  6. Step 6: Final answer
    x = 517.12

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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.