Home / 220,836.70-331,260.47-80,595.30

Finding the Fourth Proportional to 220,836.70, 331,260.47 and 80,595.30

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Solution

The fourth proportional to 220,836.70, 331,260.47 and 80,595.30 is: 120,894.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,836.70 : 331,260.47 = 80,595.30 : x
  2. Step 2: Convert to fraction form
    220,836.70/331,260.47 = 80,595.30/x
  3. Step 3: Cross multiply
    220,836.70x = 331,260.47 × 80,595.30
  4. Step 4: Simplify right side
    220,836.70x = 26,698,036,957.79
  5. Step 5: Solve for x
    x = 26,698,036,957.79/220,836.70
  6. Step 6: Final answer
    x = 120,894.93

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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.