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Finding the Fourth Proportional to 167.76, 250.53 and 140.50

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Solution

The fourth proportional to 167.76, 250.53 and 140.50 is: 209.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    167.76 : 250.53 = 140.50 : x
  2. Step 2: Convert to fraction form
    167.76/250.53 = 140.50/x
  3. Step 3: Cross multiply
    167.76x = 250.53 × 140.50
  4. Step 4: Simplify right side
    167.76x = 35,199.47
  5. Step 5: Solve for x
    x = 35,199.47/167.76
  6. Step 6: Final answer
    x = 209.82

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.