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Finding the Fourth Proportional to 550,478.62, 825,519.83 and 190,551.68

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Solution

The fourth proportional to 550,478.62, 825,519.83 and 190,551.68 is: 285,758.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,478.62 : 825,519.83 = 190,551.68 : x
  2. Step 2: Convert to fraction form
    550,478.62/825,519.83 = 190,551.68/x
  3. Step 3: Cross multiply
    550,478.62x = 825,519.83 × 190,551.68
  4. Step 4: Simplify right side
    550,478.62x = 157,304,188,495.16
  5. Step 5: Solve for x
    x = 157,304,188,495.16/550,478.62
  6. Step 6: Final answer
    x = 285,758.94

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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.