Home / 320,450.25-480,757.46-120,772.29

Finding the Fourth Proportional to 320,450.25, 480,757.46 and 120,772.29

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Solution

The fourth proportional to 320,450.25, 480,757.46 and 120,772.29 is: 181,189.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,450.25 : 480,757.46 = 120,772.29 : x
  2. Step 2: Convert to fraction form
    320,450.25/480,757.46 = 120,772.29/x
  3. Step 3: Cross multiply
    320,450.25x = 480,757.46 × 120,772.29
  4. Step 4: Simplify right side
    320,450.25x = 58,062,178,774.92
  5. Step 5: Solve for x
    x = 58,062,178,774.92/320,450.25
  6. Step 6: Final answer
    x = 181,189.37

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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.