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Finding the Fourth Proportional to 270,081.85, 372,702.88 and 149,220.54

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Solution

The fourth proportional to 270,081.85, 372,702.88 and 149,220.54 is: 205,918.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,081.85 : 372,702.88 = 149,220.54 : x
  2. Step 2: Convert to fraction form
    270,081.85/372,702.88 = 149,220.54/x
  3. Step 3: Cross multiply
    270,081.85x = 372,702.88 × 149,220.54
  4. Step 4: Simplify right side
    270,081.85x = 55,614,924,267.05
  5. Step 5: Solve for x
    x = 55,614,924,267.05/270,081.85
  6. Step 6: Final answer
    x = 205,918.78

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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.