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Finding the Fourth Proportional to 592.60, 817.77 and 330.61

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Solution

The fourth proportional to 592.60, 817.77 and 330.61 is: 456.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    592.60 : 817.77 = 330.61 : x
  2. Step 2: Convert to fraction form
    592.60/817.77 = 330.61/x
  3. Step 3: Cross multiply
    592.60x = 817.77 × 330.61
  4. Step 4: Simplify right side
    592.60x = 270,362.94
  5. Step 5: Solve for x
    x = 270,362.94/592.60
  6. Step 6: Final answer
    x = 456.23

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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.