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Finding the Fourth Proportional to 279,759.17, 419,641.64 and 223,954.09

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Solution

The fourth proportional to 279,759.17, 419,641.64 and 223,954.09 is: 335,933.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,759.17 : 419,641.64 = 223,954.09 : x
  2. Step 2: Convert to fraction form
    279,759.17/419,641.64 = 223,954.09/x
  3. Step 3: Cross multiply
    279,759.17x = 419,641.64 × 223,954.09
  4. Step 4: Simplify right side
    279,759.17x = 93,980,461,612.31
  5. Step 5: Solve for x
    x = 93,980,461,612.31/279,759.17
  6. Step 6: Final answer
    x = 335,933.44

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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.