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Finding the Fourth Proportional to 198,153.77, 297,253.11 and 71,853.44

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Solution

The fourth proportional to 198,153.77, 297,253.11 and 71,853.44 is: 107,788.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,153.77 : 297,253.11 = 71,853.44 : x
  2. Step 2: Convert to fraction form
    198,153.77/297,253.11 = 71,853.44/x
  3. Step 3: Cross multiply
    198,153.77x = 297,253.11 × 71,853.44
  4. Step 4: Simplify right side
    198,153.77x = 21,358,658,504.20
  5. Step 5: Solve for x
    x = 21,358,658,504.20/198,153.77
  6. Step 6: Final answer
    x = 107,788.30

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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.