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Finding the Fourth Proportional to 625.72, 939.35 and 352.03

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Solution

The fourth proportional to 625.72, 939.35 and 352.03 is: 528.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    625.72 : 939.35 = 352.03 : x
  2. Step 2: Convert to fraction form
    625.72/939.35 = 352.03/x
  3. Step 3: Cross multiply
    625.72x = 939.35 × 352.03
  4. Step 4: Simplify right side
    625.72x = 330,679.38
  5. Step 5: Solve for x
    x = 330,679.38/625.72
  6. Step 6: Final answer
    x = 528.48

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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.