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Finding the Fourth Proportional to 181.30, 250.34 and 123.24

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Solution

The fourth proportional to 181.30, 250.34 and 123.24 is: 170.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    181.30 : 250.34 = 123.24 : x
  2. Step 2: Convert to fraction form
    181.30/250.34 = 123.24/x
  3. Step 3: Cross multiply
    181.30x = 250.34 × 123.24
  4. Step 4: Simplify right side
    181.30x = 30,851.90
  5. Step 5: Solve for x
    x = 30,851.90/181.30
  6. Step 6: Final answer
    x = 170.17

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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.