Home / 268,780.65-370,917.36-147,921.90

Finding the Fourth Proportional to 268,780.65, 370,917.36 and 147,921.90

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Solution

The fourth proportional to 268,780.65, 370,917.36 and 147,921.90 is: 204,132.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,780.65 : 370,917.36 = 147,921.90 : x
  2. Step 2: Convert to fraction form
    268,780.65/370,917.36 = 147,921.90/x
  3. Step 3: Cross multiply
    268,780.65x = 370,917.36 × 147,921.90
  4. Step 4: Simplify right side
    268,780.65x = 54,866,800,634.18
  5. Step 5: Solve for x
    x = 54,866,800,634.18/268,780.65
  6. Step 6: Final answer
    x = 204,132.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.