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Finding the Fourth Proportional to 191.48, 265.34 and 188.24

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Solution

The fourth proportional to 191.48, 265.34 and 188.24 is: 260.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    191.48 : 265.34 = 188.24 : x
  2. Step 2: Convert to fraction form
    191.48/265.34 = 188.24/x
  3. Step 3: Cross multiply
    191.48x = 265.34 × 188.24
  4. Step 4: Simplify right side
    191.48x = 49,947.60
  5. Step 5: Solve for x
    x = 49,947.60/191.48
  6. Step 6: Final answer
    x = 260.85

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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.