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Finding the Fourth Proportional to 169.96, 233.53 and 153.76

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Solution

The fourth proportional to 169.96, 233.53 and 153.76 is: 211.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    169.96 : 233.53 = 153.76 : x
  2. Step 2: Convert to fraction form
    169.96/233.53 = 153.76/x
  3. Step 3: Cross multiply
    169.96x = 233.53 × 153.76
  4. Step 4: Simplify right side
    169.96x = 35,907.57
  5. Step 5: Solve for x
    x = 35,907.57/169.96
  6. Step 6: Final answer
    x = 211.27

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.