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Finding the Fourth Proportional to 624.42, 938.58 and 351.04

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Solution

The fourth proportional to 624.42, 938.58 and 351.04 is: 527.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    624.42 : 938.58 = 351.04 : x
  2. Step 2: Convert to fraction form
    624.42/938.58 = 351.04/x
  3. Step 3: Cross multiply
    624.42x = 938.58 × 351.04
  4. Step 4: Simplify right side
    624.42x = 329,479.12
  5. Step 5: Solve for x
    x = 329,479.12/624.42
  6. Step 6: Final answer
    x = 527.66

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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.