Home / 321,003.10-481,159.05-121,246.30

Finding the Fourth Proportional to 321,003.10, 481,159.05 and 121,246.30

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Solution

The fourth proportional to 321,003.10, 481,159.05 and 121,246.30 is: 181,738.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,003.10 : 481,159.05 = 121,246.30 : x
  2. Step 2: Convert to fraction form
    321,003.10/481,159.05 = 121,246.30/x
  3. Step 3: Cross multiply
    321,003.10x = 481,159.05 × 121,246.30
  4. Step 4: Simplify right side
    321,003.10x = 58,338,754,524.02
  5. Step 5: Solve for x
    x = 58,338,754,524.02/321,003.10
  6. Step 6: Final answer
    x = 181,738.91

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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.