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Finding the Fourth Proportional to 175.73, 262.10 and 172.65

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Solution

The fourth proportional to 175.73, 262.10 and 172.65 is: 257.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    175.73 : 262.10 = 172.65 : x
  2. Step 2: Convert to fraction form
    175.73/262.10 = 172.65/x
  3. Step 3: Cross multiply
    175.73x = 262.10 × 172.65
  4. Step 4: Simplify right side
    175.73x = 45,250.70
  5. Step 5: Solve for x
    x = 45,250.70/175.73
  6. Step 6: Final answer
    x = 257.51

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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.