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Finding the Fourth Proportional to 174.95, 241.45 and 109.45

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Solution

The fourth proportional to 174.95, 241.45 and 109.45 is: 151.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    174.95 : 241.45 = 109.45 : x
  2. Step 2: Convert to fraction form
    174.95/241.45 = 109.45/x
  3. Step 3: Cross multiply
    174.95x = 241.45 × 109.45
  4. Step 4: Simplify right side
    174.95x = 26,426.70
  5. Step 5: Solve for x
    x = 26,426.70/174.95
  6. Step 6: Final answer
    x = 151.05

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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.