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Finding the Fourth Proportional to 191.73, 265.95 and 185.18

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Solution

The fourth proportional to 191.73, 265.95 and 185.18 is: 256.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    191.73 : 265.95 = 185.18 : x
  2. Step 2: Convert to fraction form
    191.73/265.95 = 185.18/x
  3. Step 3: Cross multiply
    191.73x = 265.95 × 185.18
  4. Step 4: Simplify right side
    191.73x = 49,247.29
  5. Step 5: Solve for x
    x = 49,247.29/191.73
  6. Step 6: Final answer
    x = 256.86

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.