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Finding the Fourth Proportional to 587.52, 881.64 and 279.36

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Solution

The fourth proportional to 587.52, 881.64 and 279.36 is: 419.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    587.52 : 881.64 = 279.36 : x
  2. Step 2: Convert to fraction form
    587.52/881.64 = 279.36/x
  3. Step 3: Cross multiply
    587.52x = 881.64 × 279.36
  4. Step 4: Simplify right side
    587.52x = 246,294.95
  5. Step 5: Solve for x
    x = 246,294.95/587.52
  6. Step 6: Final answer
    x = 419.21

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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.