Home / 396,765.09-547,535.66-215,477.06

Finding the Fourth Proportional to 396,765.09, 547,535.66 and 215,477.06

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Solution

The fourth proportional to 396,765.09, 547,535.66 and 215,477.06 is: 297,358.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,765.09 : 547,535.66 = 215,477.06 : x
  2. Step 2: Convert to fraction form
    396,765.09/547,535.66 = 215,477.06/x
  3. Step 3: Cross multiply
    396,765.09x = 547,535.66 × 215,477.06
  4. Step 4: Simplify right side
    396,765.09x = 117,981,370,446.90
  5. Step 5: Solve for x
    x = 117,981,370,446.90/396,765.09
  6. Step 6: Final answer
    x = 297,358.24

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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.