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Finding the Fourth Proportional to 658.32, 987.57 and 333.96

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Solution

The fourth proportional to 658.32, 987.57 and 333.96 is: 500.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    658.32 : 987.57 = 333.96 : x
  2. Step 2: Convert to fraction form
    658.32/987.57 = 333.96/x
  3. Step 3: Cross multiply
    658.32x = 987.57 × 333.96
  4. Step 4: Simplify right side
    658.32x = 329,808.88
  5. Step 5: Solve for x
    x = 329,808.88/658.32
  6. Step 6: Final answer
    x = 500.99

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1.5x scale

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.