Home / 217,819.08-300,586.54-121,023.83

Finding the Fourth Proportional to 217,819.08, 300,586.54 and 121,023.83

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Solution

The fourth proportional to 217,819.08, 300,586.54 and 121,023.83 is: 167,010.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,819.08 : 300,586.54 = 121,023.83 : x
  2. Step 2: Convert to fraction form
    217,819.08/300,586.54 = 121,023.83/x
  3. Step 3: Cross multiply
    217,819.08x = 300,586.54 × 121,023.83
  4. Step 4: Simplify right side
    217,819.08x = 36,378,133,190.05
  5. Step 5: Solve for x
    x = 36,378,133,190.05/217,819.08
  6. Step 6: Final answer
    x = 167,010.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.