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Finding the Fourth Proportional to 181.25, 250.22 and 170.45

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Solution

The fourth proportional to 181.25, 250.22 and 170.45 is: 235.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    181.25 : 250.22 = 170.45 : x
  2. Step 2: Convert to fraction form
    181.25/250.22 = 170.45/x
  3. Step 3: Cross multiply
    181.25x = 250.22 × 170.45
  4. Step 4: Simplify right side
    181.25x = 42,649.15
  5. Step 5: Solve for x
    x = 42,649.15/181.25
  6. Step 6: Final answer
    x = 235.31

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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.