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Finding the Fourth Proportional to 169.02, 233.01 and 137.79

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Solution

The fourth proportional to 169.02, 233.01 and 137.79 is: 189.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    169.02 : 233.01 = 137.79 : x
  2. Step 2: Convert to fraction form
    169.02/233.01 = 137.79/x
  3. Step 3: Cross multiply
    169.02x = 233.01 × 137.79
  4. Step 4: Simplify right side
    169.02x = 32,106.45
  5. Step 5: Solve for x
    x = 32,106.45/169.02
  6. Step 6: Final answer
    x = 189.96

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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.