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Finding the Fourth Proportional to 206,724.20, 310,013.40 and 73,608.80

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Solution

The fourth proportional to 206,724.20, 310,013.40 and 73,608.80 is: 110,387.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,724.20 : 310,013.40 = 73,608.80 : x
  2. Step 2: Convert to fraction form
    206,724.20/310,013.40 = 73,608.80/x
  3. Step 3: Cross multiply
    206,724.20x = 310,013.40 × 73,608.80
  4. Step 4: Simplify right side
    206,724.20x = 22,819,714,357.92
  5. Step 5: Solve for x
    x = 22,819,714,357.92/206,724.20
  6. Step 6: Final answer
    x = 110,387.24

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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.