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Finding the Fourth Proportional to 174.92, 241.15 and 145.31

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Solution

The fourth proportional to 174.92, 241.15 and 145.31 is: 200.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    174.92 : 241.15 = 145.31 : x
  2. Step 2: Convert to fraction form
    174.92/241.15 = 145.31/x
  3. Step 3: Cross multiply
    174.92x = 241.15 × 145.31
  4. Step 4: Simplify right side
    174.92x = 35,039.57
  5. Step 5: Solve for x
    x = 35,039.57/174.92
  6. Step 6: Final answer
    x = 200.32

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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.