Home / 396,470.10-547,132.62-215,183.64

Finding the Fourth Proportional to 396,470.10, 547,132.62 and 215,183.64

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Solution

The fourth proportional to 396,470.10, 547,132.62 and 215,183.64 is: 296,955.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,470.10 : 547,132.62 = 215,183.64 : x
  2. Step 2: Convert to fraction form
    396,470.10/547,132.62 = 215,183.64/x
  3. Step 3: Cross multiply
    396,470.10x = 547,132.62 × 215,183.64
  4. Step 4: Simplify right side
    396,470.10x = 117,733,988,734.34
  5. Step 5: Solve for x
    x = 117,733,988,734.34/396,470.10
  6. Step 6: Final answer
    x = 296,955.53

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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.