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Finding the Fourth Proportional to 587.36, 881.58 and 279.43

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Solution

The fourth proportional to 587.36, 881.58 and 279.43 is: 419.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    587.36 : 881.58 = 279.43 : x
  2. Step 2: Convert to fraction form
    587.36/881.58 = 279.43/x
  3. Step 3: Cross multiply
    587.36x = 881.58 × 279.43
  4. Step 4: Simplify right side
    587.36x = 246,335.49
  5. Step 5: Solve for x
    x = 246,335.49/587.36
  6. Step 6: Final answer
    x = 419.39

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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.