Home / 680,100.20-1,020,150.30-206,784.80

Finding the Fourth Proportional to 680,100.20, 1,020,150.30 and 206,784.80

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Solution

The fourth proportional to 680,100.20, 1,020,150.30 and 206,784.80 is: 310,177.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,100.20 : 1,020,150.30 = 206,784.80 : x
  2. Step 2: Convert to fraction form
    680,100.20/1,020,150.30 = 206,784.80/x
  3. Step 3: Cross multiply
    680,100.20x = 1,020,150.30 × 206,784.80
  4. Step 4: Simplify right side
    680,100.20x = 210,951,575,755.44
  5. Step 5: Solve for x
    x = 210,951,575,755.44/680,100.20
  6. Step 6: Final answer
    x = 310,177.20

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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.