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Finding the Fourth Proportional to 579.43, 799.14 and 358.17

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Solution

The fourth proportional to 579.43, 799.14 and 358.17 is: 493.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    579.43 : 799.14 = 358.17 : x
  2. Step 2: Convert to fraction form
    579.43/799.14 = 358.17/x
  3. Step 3: Cross multiply
    579.43x = 799.14 × 358.17
  4. Step 4: Simplify right side
    579.43x = 286,227.97
  5. Step 5: Solve for x
    x = 286,227.97/579.43
  6. Step 6: Final answer
    x = 493.98

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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.