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Finding the Fourth Proportional to 543,456.80, 815,476.80 and 227,945.60

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Solution

The fourth proportional to 543,456.80, 815,476.80 and 227,945.60 is: 342,040.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,456.80 : 815,476.80 = 227,945.60 : x
  2. Step 2: Convert to fraction form
    543,456.80/815,476.80 = 227,945.60/x
  3. Step 3: Cross multiply
    543,456.80x = 815,476.80 × 227,945.60
  4. Step 4: Simplify right side
    543,456.80x = 185,884,348,462.08
  5. Step 5: Solve for x
    x = 185,884,348,462.08/543,456.80
  6. Step 6: Final answer
    x = 342,040.71

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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.