Home / 396,569.76-547,262.44-215,277.80

Finding the Fourth Proportional to 396,569.76, 547,262.44 and 215,277.80

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Solution

The fourth proportional to 396,569.76, 547,262.44 and 215,277.80 is: 297,081.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,569.76 : 547,262.44 = 215,277.80 : x
  2. Step 2: Convert to fraction form
    396,569.76/547,262.44 = 215,277.80/x
  3. Step 3: Cross multiply
    396,569.76x = 547,262.44 × 215,277.80
  4. Step 4: Simplify right side
    396,569.76x = 117,813,454,105.83
  5. Step 5: Solve for x
    x = 117,813,454,105.83/396,569.76
  6. Step 6: Final answer
    x = 297,081.29

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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.