Home / 321,132.72-481,435.92-121,339.44

Finding the Fourth Proportional to 321,132.72, 481,435.92 and 121,339.44

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Solution

The fourth proportional to 321,132.72, 481,435.92 and 121,339.44 is: 181,909.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,132.72 : 481,435.92 = 121,339.44 : x
  2. Step 2: Convert to fraction form
    321,132.72/481,435.92 = 121,339.44/x
  3. Step 3: Cross multiply
    321,132.72x = 481,435.92 × 121,339.44
  4. Step 4: Simplify right side
    321,132.72x = 58,417,164,928.68
  5. Step 5: Solve for x
    x = 58,417,164,928.68/321,132.72
  6. Step 6: Final answer
    x = 181,909.73

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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.