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Finding the Fourth Proportional to 587.85, 881.16 and 279.48

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Solution

The fourth proportional to 587.85, 881.16 and 279.48 is: 418.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    587.85 : 881.16 = 279.48 : x
  2. Step 2: Convert to fraction form
    587.85/881.16 = 279.48/x
  3. Step 3: Cross multiply
    587.85x = 881.16 × 279.48
  4. Step 4: Simplify right side
    587.85x = 246,266.60
  5. Step 5: Solve for x
    x = 246,266.60/587.85
  6. Step 6: Final answer
    x = 418.93

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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.