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Finding the Fourth Proportional to 394,244.69, 544,057.88 and 212,956.61

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Solution

The fourth proportional to 394,244.69, 544,057.88 and 212,956.61 is: 293,880.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,244.69 : 544,057.88 = 212,956.61 : x
  2. Step 2: Convert to fraction form
    394,244.69/544,057.88 = 212,956.61/x
  3. Step 3: Cross multiply
    394,244.69x = 544,057.88 × 212,956.61
  4. Step 4: Simplify right side
    394,244.69x = 115,860,723,542.61
  5. Step 5: Solve for x
    x = 115,860,723,542.61/394,244.69
  6. Step 6: Final answer
    x = 293,880.24

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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.