Home / 396,580.55-547,281.51-215,292.36

Finding the Fourth Proportional to 396,580.55, 547,281.51 and 215,292.36

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Solution

The fourth proportional to 396,580.55, 547,281.51 and 215,292.36 is: 297,103.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,580.55 : 547,281.51 = 215,292.36 : x
  2. Step 2: Convert to fraction form
    396,580.55/547,281.51 = 215,292.36/x
  3. Step 3: Cross multiply
    396,580.55x = 547,281.51 × 215,292.36
  4. Step 4: Simplify right side
    396,580.55x = 117,825,527,872.26
  5. Step 5: Solve for x
    x = 117,825,527,872.26/396,580.55
  6. Step 6: Final answer
    x = 297,103.65

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1.5x scale

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.