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Finding the Fourth Proportional to 394,246.25, 544,059.74 and 212,958.18

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Solution

The fourth proportional to 394,246.25, 544,059.74 and 212,958.18 is: 293,882.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,246.25 : 544,059.74 = 212,958.18 : x
  2. Step 2: Convert to fraction form
    394,246.25/544,059.74 = 212,958.18/x
  3. Step 3: Cross multiply
    394,246.25x = 544,059.74 × 212,958.18
  4. Step 4: Simplify right side
    394,246.25x = 115,861,972,041.67
  5. Step 5: Solve for x
    x = 115,861,972,041.67/394,246.25
  6. Step 6: Final answer
    x = 293,882.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.