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Finding the Fourth Proportional to 174.77, 240.49 and 151.35

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Solution

The fourth proportional to 174.77, 240.49 and 151.35 is: 208.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    174.77 : 240.49 = 151.35 : x
  2. Step 2: Convert to fraction form
    174.77/240.49 = 151.35/x
  3. Step 3: Cross multiply
    174.77x = 240.49 × 151.35
  4. Step 4: Simplify right side
    174.77x = 36,398.16
  5. Step 5: Solve for x
    x = 36,398.16/174.77
  6. Step 6: Final answer
    x = 208.26

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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.