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Finding the Fourth Proportional to 394,807.05, 544,835.41 and 213,519.02

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Solution

The fourth proportional to 394,807.05, 544,835.41 and 213,519.02 is: 294,657.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,807.05 : 544,835.41 = 213,519.02 : x
  2. Step 2: Convert to fraction form
    394,807.05/544,835.41 = 213,519.02/x
  3. Step 3: Cross multiply
    394,807.05x = 544,835.41 × 213,519.02
  4. Step 4: Simplify right side
    394,807.05x = 116,332,719,546.52
  5. Step 5: Solve for x
    x = 116,332,719,546.52/394,807.05
  6. Step 6: Final answer
    x = 294,657.15

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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.