Home / 396,818.87-547,614.02-215,534.35

Finding the Fourth Proportional to 396,818.87, 547,614.02 and 215,534.35

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Solution

The fourth proportional to 396,818.87, 547,614.02 and 215,534.35 is: 297,439.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,818.87 : 547,614.02 = 215,534.35 : x
  2. Step 2: Convert to fraction form
    396,818.87/547,614.02 = 215,534.35/x
  3. Step 3: Cross multiply
    396,818.87x = 547,614.02 × 215,534.35
  4. Step 4: Simplify right side
    396,818.87x = 118,029,631,021.39
  5. Step 5: Solve for x
    x = 118,029,631,021.39/396,818.87
  6. Step 6: Final answer
    x = 297,439.56

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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.