Home / 279,774.78-419,786.10-146,623.38

Finding the Fourth Proportional to 279,774.78, 419,786.10 and 146,623.38

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Solution

The fourth proportional to 279,774.78, 419,786.10 and 146,623.38 is: 220,000.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,774.78 : 419,786.10 = 146,623.38 : x
  2. Step 2: Convert to fraction form
    279,774.78/419,786.10 = 146,623.38/x
  3. Step 3: Cross multiply
    279,774.78x = 419,786.10 × 146,623.38
  4. Step 4: Simplify right side
    279,774.78x = 61,550,456,859.02
  5. Step 5: Solve for x
    x = 61,550,456,859.02/279,774.78
  6. Step 6: Final answer
    x = 220,000.02

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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.