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Finding the Fourth Proportional to 279,360.54, 419,040.81 and 229,912.74

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Solution

The fourth proportional to 279,360.54, 419,040.81 and 229,912.74 is: 344,869.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,360.54 : 419,040.81 = 229,912.74 : x
  2. Step 2: Convert to fraction form
    279,360.54/419,040.81 = 229,912.74/x
  3. Step 3: Cross multiply
    279,360.54x = 419,040.81 × 229,912.74
  4. Step 4: Simplify right side
    279,360.54x = 96,342,820,798.92
  5. Step 5: Solve for x
    x = 96,342,820,798.92/279,360.54
  6. Step 6: Final answer
    x = 344,869.11

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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.