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Finding the Fourth Proportional to 191.60, 264.92 and 167.30

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Solution

The fourth proportional to 191.60, 264.92 and 167.30 is: 231.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    191.60 : 264.92 = 167.30 : x
  2. Step 2: Convert to fraction form
    191.60/264.92 = 167.30/x
  3. Step 3: Cross multiply
    191.60x = 264.92 × 167.30
  4. Step 4: Simplify right side
    191.60x = 44,321.12
  5. Step 5: Solve for x
    x = 44,321.12/191.60
  6. Step 6: Final answer
    x = 231.32

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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.