Home / 220,822.17-331,238.70-80,580.75

Finding the Fourth Proportional to 220,822.17, 331,238.70 and 80,580.75

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Solution

The fourth proportional to 220,822.17, 331,238.70 and 80,580.75 is: 120,873.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,822.17 : 331,238.70 = 80,580.75 : x
  2. Step 2: Convert to fraction form
    220,822.17/331,238.70 = 80,580.75/x
  3. Step 3: Cross multiply
    220,822.17x = 331,238.70 × 80,580.75
  4. Step 4: Simplify right side
    220,822.17x = 26,691,462,875.03
  5. Step 5: Solve for x
    x = 26,691,462,875.03/220,822.17
  6. Step 6: Final answer
    x = 120,873.11

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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.