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Finding the Fourth Proportional to 198,262.24, 297,389.44 and 79,930.88

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Solution

The fourth proportional to 198,262.24, 297,389.44 and 79,930.88 is: 119,894.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,262.24 : 297,389.44 = 79,930.88 : x
  2. Step 2: Convert to fraction form
    198,262.24/297,389.44 = 79,930.88/x
  3. Step 3: Cross multiply
    198,262.24x = 297,389.44 × 79,930.88
  4. Step 4: Simplify right side
    198,262.24x = 23,770,599,641.91
  5. Step 5: Solve for x
    x = 23,770,599,641.91/198,262.24
  6. Step 6: Final answer
    x = 119,894.74

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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.