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Finding the Fourth Proportional to 187.59, 258.36 and 185.62

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Solution

The fourth proportional to 187.59, 258.36 and 185.62 is: 255.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    187.59 : 258.36 = 185.62 : x
  2. Step 2: Convert to fraction form
    187.59/258.36 = 185.62/x
  3. Step 3: Cross multiply
    187.59x = 258.36 × 185.62
  4. Step 4: Simplify right side
    187.59x = 47,956.78
  5. Step 5: Solve for x
    x = 47,956.78/187.59
  6. Step 6: Final answer
    x = 255.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.