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Finding the Fourth Proportional to 412,670.10, 619,055.91 and 159,954.78

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Solution

The fourth proportional to 412,670.10, 619,055.91 and 159,954.78 is: 239,951.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,670.10 : 619,055.91 = 159,954.78 : x
  2. Step 2: Convert to fraction form
    412,670.10/619,055.91 = 159,954.78/x
  3. Step 3: Cross multiply
    412,670.10x = 619,055.91 × 159,954.78
  4. Step 4: Simplify right side
    412,670.10x = 99,020,951,891.75
  5. Step 5: Solve for x
    x = 99,020,951,891.75/412,670.10
  6. Step 6: Final answer
    x = 239,951.85

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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.