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Finding the Fourth Proportional to 185.87, 279.89 and 134.87

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Solution

The fourth proportional to 185.87, 279.89 and 134.87 is: 203.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    185.87 : 279.89 = 134.87 : x
  2. Step 2: Convert to fraction form
    185.87/279.89 = 134.87/x
  3. Step 3: Cross multiply
    185.87x = 279.89 × 134.87
  4. Step 4: Simplify right side
    185.87x = 37,746.69
  5. Step 5: Solve for x
    x = 37,746.69/185.87
  6. Step 6: Final answer
    x = 203.09

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.