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Finding the Fourth Proportional to 587.68, 881.52 and 331.36

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Solution

The fourth proportional to 587.68, 881.52 and 331.36 is: 497.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    587.68 : 881.52 = 331.36 : x
  2. Step 2: Convert to fraction form
    587.68/881.52 = 331.36/x
  3. Step 3: Cross multiply
    587.68x = 881.52 × 331.36
  4. Step 4: Simplify right side
    587.68x = 292,100.47
  5. Step 5: Solve for x
    x = 292,100.47/587.68
  6. Step 6: Final answer
    x = 497.04

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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.