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Finding the Fourth Proportional to 198,129.96, 297,191.70 and 79,798.32

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Solution

The fourth proportional to 198,129.96, 297,191.70 and 79,798.32 is: 119,696.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,129.96 : 297,191.70 = 79,798.32 : x
  2. Step 2: Convert to fraction form
    198,129.96/297,191.70 = 79,798.32/x
  3. Step 3: Cross multiply
    198,129.96x = 297,191.70 × 79,798.32
  4. Step 4: Simplify right side
    198,129.96x = 23,715,398,377.94
  5. Step 5: Solve for x
    x = 23,715,398,377.94/198,129.96
  6. Step 6: Final answer
    x = 119,696.18

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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.