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Finding the Fourth Proportional to 882.10, 1,323.17 and 361.97

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Solution

The fourth proportional to 882.10, 1,323.17 and 361.97 is: 542.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    882.10 : 1,323.17 = 361.97 : x
  2. Step 2: Convert to fraction form
    882.10/1,323.17 = 361.97/x
  3. Step 3: Cross multiply
    882.10x = 1,323.17 × 361.97
  4. Step 4: Simplify right side
    882.10x = 478,947.84
  5. Step 5: Solve for x
    x = 478,947.84/882.10
  6. Step 6: Final answer
    x = 542.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.