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Finding the Fourth Proportional to 394,805.19, 544,836.47 and 222,722.63

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Solution

The fourth proportional to 394,805.19, 544,836.47 and 222,722.63 is: 307,360.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,805.19 : 544,836.47 = 222,722.63 : x
  2. Step 2: Convert to fraction form
    394,805.19/544,836.47 = 222,722.63/x
  3. Step 3: Cross multiply
    394,805.19x = 544,836.47 × 222,722.63
  4. Step 4: Simplify right side
    394,805.19x = 121,347,409,350.94
  5. Step 5: Solve for x
    x = 121,347,409,350.94/394,805.19
  6. Step 6: Final answer
    x = 307,360.22

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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.