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Finding the Fourth Proportional to 167.65, 250.75 and 155.35

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Solution

The fourth proportional to 167.65, 250.75 and 155.35 is: 232.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    167.65 : 250.75 = 155.35 : x
  2. Step 2: Convert to fraction form
    167.65/250.75 = 155.35/x
  3. Step 3: Cross multiply
    167.65x = 250.75 × 155.35
  4. Step 4: Simplify right side
    167.65x = 38,954.01
  5. Step 5: Solve for x
    x = 38,954.01/167.65
  6. Step 6: Final answer
    x = 232.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.