Home / 215,254.87-322,671.50-80,220.07

Finding the Fourth Proportional to 215,254.87, 322,671.50 and 80,220.07

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Solution

The fourth proportional to 215,254.87, 322,671.50 and 80,220.07 is: 120,251.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,254.87 : 322,671.50 = 80,220.07 : x
  2. Step 2: Convert to fraction form
    215,254.87/322,671.50 = 80,220.07/x
  3. Step 3: Cross multiply
    215,254.87x = 322,671.50 × 80,220.07
  4. Step 4: Simplify right side
    215,254.87x = 25,884,730,620.07
  5. Step 5: Solve for x
    x = 25,884,730,620.07/215,254.87
  6. Step 6: Final answer
    x = 120,251.55

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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.