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Finding the Fourth Proportional to 198,378.29, 297,578.67 and 63,454.20

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Solution

The fourth proportional to 198,378.29, 297,578.67 and 63,454.20 is: 95,184.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,378.29 : 297,578.67 = 63,454.20 : x
  2. Step 2: Convert to fraction form
    198,378.29/297,578.67 = 63,454.20/x
  3. Step 3: Cross multiply
    198,378.29x = 297,578.67 × 63,454.20
  4. Step 4: Simplify right side
    198,378.29x = 18,882,616,441.91
  5. Step 5: Solve for x
    x = 18,882,616,441.91/198,378.29
  6. Step 6: Final answer
    x = 95,184.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.