Home / 215,209.88-322,812.20-96,797.60

Finding the Fourth Proportional to 215,209.88, 322,812.20 and 96,797.60

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Solution

The fourth proportional to 215,209.88, 322,812.20 and 96,797.60 is: 145,195.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,209.88 : 322,812.20 = 96,797.60 : x
  2. Step 2: Convert to fraction form
    215,209.88/322,812.20 = 96,797.60/x
  3. Step 3: Cross multiply
    215,209.88x = 322,812.20 × 96,797.60
  4. Step 4: Simplify right side
    215,209.88x = 31,247,446,210.72
  5. Step 5: Solve for x
    x = 31,247,446,210.72/215,209.88
  6. Step 6: Final answer
    x = 145,195.22

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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.