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Finding the Fourth Proportional to 270,233.85, 372,918.67 and 149,372.47

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Solution

The fourth proportional to 270,233.85, 372,918.67 and 149,372.47 is: 206,131.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,233.85 : 372,918.67 = 149,372.47 : x
  2. Step 2: Convert to fraction form
    270,233.85/372,918.67 = 149,372.47/x
  3. Step 3: Cross multiply
    270,233.85x = 372,918.67 × 149,372.47
  4. Step 4: Simplify right side
    270,233.85x = 55,703,782,939.73
  5. Step 5: Solve for x
    x = 55,703,782,939.73/270,233.85
  6. Step 6: Final answer
    x = 206,131.77

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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.