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Finding the Fourth Proportional to 366,900.98, 550,351.46 and 278,327.48

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Solution

The fourth proportional to 366,900.98, 550,351.46 and 278,327.48 is: 417,491.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,900.98 : 550,351.46 = 278,327.48 : x
  2. Step 2: Convert to fraction form
    366,900.98/550,351.46 = 278,327.48/x
  3. Step 3: Cross multiply
    366,900.98x = 550,351.46 × 278,327.48
  4. Step 4: Simplify right side
    366,900.98x = 153,177,932,920.18
  5. Step 5: Solve for x
    x = 153,177,932,920.18/366,900.98
  6. Step 6: Final answer
    x = 417,491.21

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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.