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Finding the Fourth Proportional to 881.80, 1,323.39 and 362.18

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Solution

The fourth proportional to 881.80, 1,323.39 and 362.18 is: 543.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    881.80 : 1,323.39 = 362.18 : x
  2. Step 2: Convert to fraction form
    881.80/1,323.39 = 362.18/x
  3. Step 3: Cross multiply
    881.80x = 1,323.39 × 362.18
  4. Step 4: Simplify right side
    881.80x = 479,305.39
  5. Step 5: Solve for x
    x = 479,305.39/881.80
  6. Step 6: Final answer
    x = 543.55

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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.