Home / 279,769.18-419,777.84-146,617.83

Finding the Fourth Proportional to 279,769.18, 419,777.84 and 146,617.83

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Solution

The fourth proportional to 279,769.18, 419,777.84 and 146,617.83 is: 219,991.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,769.18 : 419,777.84 = 146,617.83 : x
  2. Step 2: Convert to fraction form
    279,769.18/419,777.84 = 146,617.83/x
  3. Step 3: Cross multiply
    279,769.18x = 419,777.84 × 146,617.83
  4. Step 4: Simplify right side
    279,769.18x = 61,546,915,982.89
  5. Step 5: Solve for x
    x = 61,546,915,982.89/279,769.18
  6. Step 6: Final answer
    x = 219,991.77

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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.