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Finding the Fourth Proportional to 388,673.39, 583,010.09 and 222,344.75

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Solution

The fourth proportional to 388,673.39, 583,010.09 and 222,344.75 is: 333,517.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,673.39 : 583,010.09 = 222,344.75 : x
  2. Step 2: Convert to fraction form
    388,673.39/583,010.09 = 222,344.75/x
  3. Step 3: Cross multiply
    388,673.39x = 583,010.09 × 222,344.75
  4. Step 4: Simplify right side
    388,673.39x = 129,629,232,708.53
  5. Step 5: Solve for x
    x = 129,629,232,708.53/388,673.39
  6. Step 6: Final answer
    x = 333,517.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.