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Finding the Fourth Proportional to 579.71, 800.08 and 358.73

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Solution

The fourth proportional to 579.71, 800.08 and 358.73 is: 495.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    579.71 : 800.08 = 358.73 : x
  2. Step 2: Convert to fraction form
    579.71/800.08 = 358.73/x
  3. Step 3: Cross multiply
    579.71x = 800.08 × 358.73
  4. Step 4: Simplify right side
    579.71x = 287,010.80
  5. Step 5: Solve for x
    x = 287,010.80/579.71
  6. Step 6: Final answer
    x = 495.10

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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.