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Finding the Fourth Proportional to 174, 240.26 and 135.39

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Solution

The fourth proportional to 174, 240.26 and 135.39 is: 186.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    174 : 240.26 = 135.39 : x
  2. Step 2: Convert to fraction form
    174/240.26 = 135.39/x
  3. Step 3: Cross multiply
    174x = 240.26 × 135.39
  4. Step 4: Simplify right side
    174x = 32,528.12
  5. Step 5: Solve for x
    x = 32,528.12/174
  6. Step 6: Final answer
    x = 186.94

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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.