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Finding the Fourth Proportional to 236.76, 326.45 and 174.57

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Solution

The fourth proportional to 236.76, 326.45 and 174.57 is: 240.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    236.76 : 326.45 = 174.57 : x
  2. Step 2: Convert to fraction form
    236.76/326.45 = 174.57/x
  3. Step 3: Cross multiply
    236.76x = 326.45 × 174.57
  4. Step 4: Simplify right side
    236.76x = 56,988.38
  5. Step 5: Solve for x
    x = 56,988.38/236.76
  6. Step 6: Final answer
    x = 240.70

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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.