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Finding the Fourth Proportional to 187.96, 257.85 and 182.90

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Solution

The fourth proportional to 187.96, 257.85 and 182.90 is: 250.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    187.96 : 257.85 = 182.90 : x
  2. Step 2: Convert to fraction form
    187.96/257.85 = 182.90/x
  3. Step 3: Cross multiply
    187.96x = 257.85 × 182.90
  4. Step 4: Simplify right side
    187.96x = 47,160.77
  5. Step 5: Solve for x
    x = 47,160.77/187.96
  6. Step 6: Final answer
    x = 250.91

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.