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Finding the Fourth Proportional to 204,042.90, 306,064.35 and 79,383.90

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Solution

The fourth proportional to 204,042.90, 306,064.35 and 79,383.90 is: 119,075.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,042.90 : 306,064.35 = 79,383.90 : x
  2. Step 2: Convert to fraction form
    204,042.90/306,064.35 = 79,383.90/x
  3. Step 3: Cross multiply
    204,042.90x = 306,064.35 × 79,383.90
  4. Step 4: Simplify right side
    204,042.90x = 24,296,581,753.97
  5. Step 5: Solve for x
    x = 24,296,581,753.97/204,042.90
  6. Step 6: Final answer
    x = 119,075.85

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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.