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Finding the Fourth Proportional to 476.83, 658.39 and 358.97

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Solution

The fourth proportional to 476.83, 658.39 and 358.97 is: 495.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    476.83 : 658.39 = 358.97 : x
  2. Step 2: Convert to fraction form
    476.83/658.39 = 358.97/x
  3. Step 3: Cross multiply
    476.83x = 658.39 × 358.97
  4. Step 4: Simplify right side
    476.83x = 236,342.26
  5. Step 5: Solve for x
    x = 236,342.26/476.83
  6. Step 6: Final answer
    x = 495.65

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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.