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Finding the Fourth Proportional to 181.22, 250.07 and 102.53

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Solution

The fourth proportional to 181.22, 250.07 and 102.53 is: 141.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    181.22 : 250.07 = 102.53 : x
  2. Step 2: Convert to fraction form
    181.22/250.07 = 102.53/x
  3. Step 3: Cross multiply
    181.22x = 250.07 × 102.53
  4. Step 4: Simplify right side
    181.22x = 25,639.79
  5. Step 5: Solve for x
    x = 25,639.79/181.22
  6. Step 6: Final answer
    x = 141.49

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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.