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Finding the Fourth Proportional to 592.32, 817.34 and 330.28

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Solution

The fourth proportional to 592.32, 817.34 and 330.28 is: 455.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    592.32 : 817.34 = 330.28 : x
  2. Step 2: Convert to fraction form
    592.32/817.34 = 330.28/x
  3. Step 3: Cross multiply
    592.32x = 817.34 × 330.28
  4. Step 4: Simplify right side
    592.32x = 269,951.06
  5. Step 5: Solve for x
    x = 269,951.06/592.32
  6. Step 6: Final answer
    x = 455.75

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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.