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Finding the Fourth Proportional to 279,594.90, 419,042.61 and 220,195.98

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Solution

The fourth proportional to 279,594.90, 419,042.61 and 220,195.98 is: 330,018.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,594.90 : 419,042.61 = 220,195.98 : x
  2. Step 2: Convert to fraction form
    279,594.90/419,042.61 = 220,195.98/x
  3. Step 3: Cross multiply
    279,594.90x = 419,042.61 × 220,195.98
  4. Step 4: Simplify right side
    279,594.90x = 92,271,498,170.71
  5. Step 5: Solve for x
    x = 92,271,498,170.71/279,594.90
  6. Step 6: Final answer
    x = 330,018.53

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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.