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Finding the Fourth Proportional to 250.25, 375.51 and 122

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Solution

The fourth proportional to 250.25, 375.51 and 122 is: 183.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    250.25 : 375.51 = 122 : x
  2. Step 2: Convert to fraction form
    250.25/375.51 = 122/x
  3. Step 3: Cross multiply
    250.25x = 375.51 × 122
  4. Step 4: Simplify right side
    250.25x = 45,812.22
  5. Step 5: Solve for x
    x = 45,812.22/250.25
  6. Step 6: Final answer
    x = 183.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.