Home / 680,101.70-1,020,152.55-206,786.30

Finding the Fourth Proportional to 680,101.70, 1,020,152.55 and 206,786.30

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Solution

The fourth proportional to 680,101.70, 1,020,152.55 and 206,786.30 is: 310,179.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,101.70 : 1,020,152.55 = 206,786.30 : x
  2. Step 2: Convert to fraction form
    680,101.70/1,020,152.55 = 206,786.30/x
  3. Step 3: Cross multiply
    680,101.70x = 1,020,152.55 × 206,786.30
  4. Step 4: Simplify right side
    680,101.70x = 210,953,571,250.07
  5. Step 5: Solve for x
    x = 210,953,571,250.07/680,101.70
  6. Step 6: Final answer
    x = 310,179.45

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Similar ratio
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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.