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Finding the Fourth Proportional to 191.91, 265.04 and 185.07

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Solution

The fourth proportional to 191.91, 265.04 and 185.07 is: 255.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    191.91 : 265.04 = 185.07 : x
  2. Step 2: Convert to fraction form
    191.91/265.04 = 185.07/x
  3. Step 3: Cross multiply
    191.91x = 265.04 × 185.07
  4. Step 4: Simplify right side
    191.91x = 49,050.95
  5. Step 5: Solve for x
    x = 49,050.95/191.91
  6. Step 6: Final answer
    x = 255.59

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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.