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Finding the Fourth Proportional to 198,410.13, 297,658.33 and 65,283.80

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Solution

The fourth proportional to 198,410.13, 297,658.33 and 65,283.80 is: 97,939.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,410.13 : 297,658.33 = 65,283.80 : x
  2. Step 2: Convert to fraction form
    198,410.13/297,658.33 = 65,283.80/x
  3. Step 3: Cross multiply
    198,410.13x = 297,658.33 × 65,283.80
  4. Step 4: Simplify right side
    198,410.13x = 19,432,265,232.55
  5. Step 5: Solve for x
    x = 19,432,265,232.55/198,410.13
  6. Step 6: Final answer
    x = 97,939.88

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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.