Home / 396,668.24-547,411.67-215,387.81

Finding the Fourth Proportional to 396,668.24, 547,411.67 and 215,387.81

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Solution

The fourth proportional to 396,668.24, 547,411.67 and 215,387.81 is: 297,240.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,668.24 : 547,411.67 = 215,387.81 : x
  2. Step 2: Convert to fraction form
    396,668.24/547,411.67 = 215,387.81/x
  3. Step 3: Cross multiply
    396,668.24x = 547,411.67 × 215,387.81
  4. Step 4: Simplify right side
    396,668.24x = 117,905,796,955.75
  5. Step 5: Solve for x
    x = 117,905,796,955.75/396,668.24
  6. Step 6: Final answer
    x = 297,240.33

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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.