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Finding the Fourth Proportional to 198,767.60, 298,165.80 and 119,711.60

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Solution

The fourth proportional to 198,767.60, 298,165.80 and 119,711.60 is: 179,576.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,767.60 : 298,165.80 = 119,711.60 : x
  2. Step 2: Convert to fraction form
    198,767.60/298,165.80 = 119,711.60/x
  3. Step 3: Cross multiply
    198,767.60x = 298,165.80 × 119,711.60
  4. Step 4: Simplify right side
    198,767.60x = 35,693,904,983.28
  5. Step 5: Solve for x
    x = 35,693,904,983.28/198,767.60
  6. Step 6: Final answer
    x = 179,576.07

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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.