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Finding the Fourth Proportional to 394,612.94, 544,619.16 and 222,566.20

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Solution

The fourth proportional to 394,612.94, 544,619.16 and 222,566.20 is: 307,171.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,612.94 : 544,619.16 = 222,566.20 : x
  2. Step 2: Convert to fraction form
    394,612.94/544,619.16 = 222,566.20/x
  3. Step 3: Cross multiply
    394,612.94x = 544,619.16 × 222,566.20
  4. Step 4: Simplify right side
    394,612.94x = 121,213,816,888.39
  5. Step 5: Solve for x
    x = 121,213,816,888.39/394,612.94
  6. Step 6: Final answer
    x = 307,171.42

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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.