Home / 198,499.20-297,748.80-73,814.40

Finding the Fourth Proportional to 198,499.20, 297,748.80 and 73,814.40

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Solution

The fourth proportional to 198,499.20, 297,748.80 and 73,814.40 is: 110,721.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,499.20 : 297,748.80 = 73,814.40 : x
  2. Step 2: Convert to fraction form
    198,499.20/297,748.80 = 73,814.40/x
  3. Step 3: Cross multiply
    198,499.20x = 297,748.80 × 73,814.40
  4. Step 4: Simplify right side
    198,499.20x = 21,978,149,022.72
  5. Step 5: Solve for x
    x = 21,978,149,022.72/198,499.20
  6. Step 6: Final answer
    x = 110,721.60

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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.