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Finding the Fourth Proportional to 396,376.24, 547,169.88 and 243,439.24

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Solution

The fourth proportional to 396,376.24, 547,169.88 and 243,439.24 is: 336,050.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,376.24 : 547,169.88 = 243,439.24 : x
  2. Step 2: Convert to fraction form
    396,376.24/547,169.88 = 243,439.24/x
  3. Step 3: Cross multiply
    396,376.24x = 547,169.88 × 243,439.24
  4. Step 4: Simplify right side
    396,376.24x = 133,202,619,738.09
  5. Step 5: Solve for x
    x = 133,202,619,738.09/396,376.24
  6. Step 6: Final answer
    x = 336,050.97

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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.