Home / 320,862.32-481,292.16-80,976.76

Finding the Fourth Proportional to 320,862.32, 481,292.16 and 80,976.76

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Solution

The fourth proportional to 320,862.32, 481,292.16 and 80,976.76 is: 121,464.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,862.32 : 481,292.16 = 80,976.76 : x
  2. Step 2: Convert to fraction form
    320,862.32/481,292.16 = 80,976.76/x
  3. Step 3: Cross multiply
    320,862.32x = 481,292.16 × 80,976.76
  4. Step 4: Simplify right side
    320,862.32x = 38,973,479,730.20
  5. Step 5: Solve for x
    x = 38,973,479,730.20/320,862.32
  6. Step 6: Final answer
    x = 121,464.81

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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.