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Finding the Fourth Proportional to 191.79, 263.25 and 175.39

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Solution

The fourth proportional to 191.79, 263.25 and 175.39 is: 240.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    191.79 : 263.25 = 175.39 : x
  2. Step 2: Convert to fraction form
    191.79/263.25 = 175.39/x
  3. Step 3: Cross multiply
    191.79x = 263.25 × 175.39
  4. Step 4: Simplify right side
    191.79x = 46,170.76
  5. Step 5: Solve for x
    x = 46,170.76/191.79
  6. Step 6: Final answer
    x = 240.74

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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.