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Finding the Fourth Proportional to 250.80, 345.57 and 185.22

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Solution

The fourth proportional to 250.80, 345.57 and 185.22 is: 255.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    250.80 : 345.57 = 185.22 : x
  2. Step 2: Convert to fraction form
    250.80/345.57 = 185.22/x
  3. Step 3: Cross multiply
    250.80x = 345.57 × 185.22
  4. Step 4: Simplify right side
    250.80x = 64,006.48
  5. Step 5: Solve for x
    x = 64,006.48/250.80
  6. Step 6: Final answer
    x = 255.21

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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.