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Finding the Fourth Proportional to 279,751.88, 419,630.79 and 223,946.79

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Solution

The fourth proportional to 279,751.88, 419,630.79 and 223,946.79 is: 335,922.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,751.88 : 419,630.79 = 223,946.79 : x
  2. Step 2: Convert to fraction form
    279,751.88/419,630.79 = 223,946.79/x
  3. Step 3: Cross multiply
    279,751.88x = 419,630.79 × 223,946.79
  4. Step 4: Simplify right side
    279,751.88x = 93,974,968,405.66
  5. Step 5: Solve for x
    x = 93,974,968,405.66/279,751.88
  6. Step 6: Final answer
    x = 335,922.57

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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.