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Finding the Fourth Proportional to 169.02, 233.55 and 137.84

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Solution

The fourth proportional to 169.02, 233.55 and 137.84 is: 190.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    169.02 : 233.55 = 137.84 : x
  2. Step 2: Convert to fraction form
    169.02/233.55 = 137.84/x
  3. Step 3: Cross multiply
    169.02x = 233.55 × 137.84
  4. Step 4: Simplify right side
    169.02x = 32,191.36
  5. Step 5: Solve for x
    x = 32,191.36/169.02
  6. Step 6: Final answer
    x = 190.46

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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.