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Finding the Fourth Proportional to 592.70, 817.89 and 330.71

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Solution

The fourth proportional to 592.70, 817.89 and 330.71 is: 456.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    592.70 : 817.89 = 330.71 : x
  2. Step 2: Convert to fraction form
    592.70/817.89 = 330.71/x
  3. Step 3: Cross multiply
    592.70x = 817.89 × 330.71
  4. Step 4: Simplify right side
    592.70x = 270,484.40
  5. Step 5: Solve for x
    x = 270,484.40/592.70
  6. Step 6: Final answer
    x = 456.36

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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.