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Finding the Fourth Proportional to 174.61, 240.39 and 151.59

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Solution

The fourth proportional to 174.61, 240.39 and 151.59 is: 208.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    174.61 : 240.39 = 151.59 : x
  2. Step 2: Convert to fraction form
    174.61/240.39 = 151.59/x
  3. Step 3: Cross multiply
    174.61x = 240.39 × 151.59
  4. Step 4: Simplify right side
    174.61x = 36,440.72
  5. Step 5: Solve for x
    x = 36,440.72/174.61
  6. Step 6: Final answer
    x = 208.70

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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.