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Finding the Fourth Proportional to 476.28, 658.08 and 382.05

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Solution

The fourth proportional to 476.28, 658.08 and 382.05 is: 527.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    476.28 : 658.08 = 382.05 : x
  2. Step 2: Convert to fraction form
    476.28/658.08 = 382.05/x
  3. Step 3: Cross multiply
    476.28x = 658.08 × 382.05
  4. Step 4: Simplify right side
    476.28x = 251,419.46
  5. Step 5: Solve for x
    x = 251,419.46/476.28
  6. Step 6: Final answer
    x = 527.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.