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Finding the Fourth Proportional to 250.05, 345.15 and 176.39

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Solution

The fourth proportional to 250.05, 345.15 and 176.39 is: 243.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    250.05 : 345.15 = 176.39 : x
  2. Step 2: Convert to fraction form
    250.05/345.15 = 176.39/x
  3. Step 3: Cross multiply
    250.05x = 345.15 × 176.39
  4. Step 4: Simplify right side
    250.05x = 60,879.28
  5. Step 5: Solve for x
    x = 60,879.28/250.05
  6. Step 6: Final answer
    x = 243.47

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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.