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Finding the Fourth Proportional to 198,225.90, 297,371.52 and 79,887.24

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Solution

The fourth proportional to 198,225.90, 297,371.52 and 79,887.24 is: 119,844.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,225.90 : 297,371.52 = 79,887.24 : x
  2. Step 2: Convert to fraction form
    198,225.90/297,371.52 = 79,887.24/x
  3. Step 3: Cross multiply
    198,225.90x = 297,371.52 × 79,887.24
  4. Step 4: Simplify right side
    198,225.90x = 23,756,189,987.40
  5. Step 5: Solve for x
    x = 23,756,189,987.40/198,225.90
  6. Step 6: Final answer
    x = 119,844.03

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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.