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Finding the Fourth Proportional to 394,544.31, 544,340.52 and 222,440.73

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Solution

The fourth proportional to 394,544.31, 544,340.52 and 222,440.73 is: 306,894.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,544.31 : 544,340.52 = 222,440.73 : x
  2. Step 2: Convert to fraction form
    394,544.31/544,340.52 = 222,440.73/x
  3. Step 3: Cross multiply
    394,544.31x = 544,340.52 × 222,440.73
  4. Step 4: Simplify right side
    394,544.31x = 121,083,502,637.38
  5. Step 5: Solve for x
    x = 121,083,502,637.38/394,544.31
  6. Step 6: Final answer
    x = 306,894.56

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1.5x scale

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.