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Finding the Fourth Proportional to 658.25, 987.97 and 350.36

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Solution

The fourth proportional to 658.25, 987.97 and 350.36 is: 525.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    658.25 : 987.97 = 350.36 : x
  2. Step 2: Convert to fraction form
    658.25/987.97 = 350.36/x
  3. Step 3: Cross multiply
    658.25x = 987.97 × 350.36
  4. Step 4: Simplify right side
    658.25x = 346,146.22
  5. Step 5: Solve for x
    x = 346,146.22/658.25
  6. Step 6: Final answer
    x = 525.86

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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.