Home / 320,121.90-480,207.24-95,464.80

Finding the Fourth Proportional to 320,121.90, 480,207.24 and 95,464.80

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Solution

The fourth proportional to 320,121.90, 480,207.24 and 95,464.80 is: 143,204.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,121.90 : 480,207.24 = 95,464.80 : x
  2. Step 2: Convert to fraction form
    320,121.90/480,207.24 = 95,464.80/x
  3. Step 3: Cross multiply
    320,121.90x = 480,207.24 × 95,464.80
  4. Step 4: Simplify right side
    320,121.90x = 45,842,888,125.15
  5. Step 5: Solve for x
    x = 45,842,888,125.15/320,121.90
  6. Step 6: Final answer
    x = 143,204.47

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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.