Home / 206,375.08-309,579-88,047.40

Finding the Fourth Proportional to 206,375.08, 309,579 and 88,047.40

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Solution

The fourth proportional to 206,375.08, 309,579 and 88,047.40 is: 132,078.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,375.08 : 309,579 = 88,047.40 : x
  2. Step 2: Convert to fraction form
    206,375.08/309,579 = 88,047.40/x
  3. Step 3: Cross multiply
    206,375.08x = 309,579 × 88,047.40
  4. Step 4: Simplify right side
    206,375.08x = 27,257,626,044.60
  5. Step 5: Solve for x
    x = 27,257,626,044.60/206,375.08
  6. Step 6: Final answer
    x = 132,078.09

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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.