Home / 220,799.68-331,248.78-80,558.32

Finding the Fourth Proportional to 220,799.68, 331,248.78 and 80,558.32

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Solution

The fourth proportional to 220,799.68, 331,248.78 and 80,558.32 is: 120,855.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,799.68 : 331,248.78 = 80,558.32 : x
  2. Step 2: Convert to fraction form
    220,799.68/331,248.78 = 80,558.32/x
  3. Step 3: Cross multiply
    220,799.68x = 331,248.78 × 80,558.32
  4. Step 4: Simplify right side
    220,799.68x = 26,684,845,218.85
  5. Step 5: Solve for x
    x = 26,684,845,218.85/220,799.68
  6. Step 6: Final answer
    x = 120,855.45

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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.