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Finding the Fourth Proportional to 658.68, 988.50 and 293.88

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Solution

The fourth proportional to 658.68, 988.50 and 293.88 is: 441.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    658.68 : 988.50 = 293.88 : x
  2. Step 2: Convert to fraction form
    658.68/988.50 = 293.88/x
  3. Step 3: Cross multiply
    658.68x = 988.50 × 293.88
  4. Step 4: Simplify right side
    658.68x = 290,500.38
  5. Step 5: Solve for x
    x = 290,500.38/658.68
  6. Step 6: Final answer
    x = 441.03

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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.