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Finding the Fourth Proportional to 207,995.80, 312,044.10 and 60,251.80

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Solution

The fourth proportional to 207,995.80, 312,044.10 and 60,251.80 is: 90,392.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,995.80 : 312,044.10 = 60,251.80 : x
  2. Step 2: Convert to fraction form
    207,995.80/312,044.10 = 60,251.80/x
  3. Step 3: Cross multiply
    207,995.80x = 312,044.10 × 60,251.80
  4. Step 4: Simplify right side
    207,995.80x = 18,801,218,704.38
  5. Step 5: Solve for x
    x = 18,801,218,704.38/207,995.80
  6. Step 6: Final answer
    x = 90,392.30

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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.