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Finding the Fourth Proportional to 191.60, 265.52 and 187.95

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Solution

The fourth proportional to 191.60, 265.52 and 187.95 is: 260.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    191.60 : 265.52 = 187.95 : x
  2. Step 2: Convert to fraction form
    191.60/265.52 = 187.95/x
  3. Step 3: Cross multiply
    191.60x = 265.52 × 187.95
  4. Step 4: Simplify right side
    191.60x = 49,904.48
  5. Step 5: Solve for x
    x = 49,904.48/191.60
  6. Step 6: Final answer
    x = 260.46

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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.