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Finding the Fourth Proportional to 587.38, 881.03 and 327.21

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Solution

The fourth proportional to 587.38, 881.03 and 327.21 is: 490.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    587.38 : 881.03 = 327.21 : x
  2. Step 2: Convert to fraction form
    587.38/881.03 = 327.21/x
  3. Step 3: Cross multiply
    587.38x = 881.03 × 327.21
  4. Step 4: Simplify right side
    587.38x = 288,284.93
  5. Step 5: Solve for x
    x = 288,284.93/587.38
  6. Step 6: Final answer
    x = 490.80

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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.