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Finding the Fourth Proportional to 198,113.34, 297,243.99 and 79,818.24

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Solution

The fourth proportional to 198,113.34, 297,243.99 and 79,818.24 is: 119,757.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,113.34 : 297,243.99 = 79,818.24 : x
  2. Step 2: Convert to fraction form
    198,113.34/297,243.99 = 79,818.24/x
  3. Step 3: Cross multiply
    198,113.34x = 297,243.99 × 79,818.24
  4. Step 4: Simplify right side
    198,113.34x = 23,725,492,132.38
  5. Step 5: Solve for x
    x = 23,725,492,132.38/198,113.34
  6. Step 6: Final answer
    x = 119,757.17

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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.