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Finding the Fourth Proportional to 169.87, 253.27 and 168.19

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Solution

The fourth proportional to 169.87, 253.27 and 168.19 is: 250.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    169.87 : 253.27 = 168.19 : x
  2. Step 2: Convert to fraction form
    169.87/253.27 = 168.19/x
  3. Step 3: Cross multiply
    169.87x = 253.27 × 168.19
  4. Step 4: Simplify right side
    169.87x = 42,597.48
  5. Step 5: Solve for x
    x = 42,597.48/169.87
  6. Step 6: Final answer
    x = 250.77

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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.