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Finding the Fourth Proportional to 658.95, 988.71 and 334.53

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Solution

The fourth proportional to 658.95, 988.71 and 334.53 is: 501.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    658.95 : 988.71 = 334.53 : x
  2. Step 2: Convert to fraction form
    658.95/988.71 = 334.53/x
  3. Step 3: Cross multiply
    658.95x = 988.71 × 334.53
  4. Step 4: Simplify right side
    658.95x = 330,753.16
  5. Step 5: Solve for x
    x = 330,753.16/658.95
  6. Step 6: Final answer
    x = 501.94

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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.