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Finding the Fourth Proportional to 279,760.43, 419,643.52 and 223,955.35

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Solution

The fourth proportional to 279,760.43, 419,643.52 and 223,955.35 is: 335,935.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,760.43 : 419,643.52 = 223,955.35 : x
  2. Step 2: Convert to fraction form
    279,760.43/419,643.52 = 223,955.35/x
  3. Step 3: Cross multiply
    279,760.43x = 419,643.52 × 223,955.35
  4. Step 4: Simplify right side
    279,760.43x = 93,981,409,787.83
  5. Step 5: Solve for x
    x = 93,981,409,787.83/279,760.43
  6. Step 6: Final answer
    x = 335,935.32

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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.