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Finding the Fourth Proportional to 400,962, 553,327.56 and 222,114

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Solution

The fourth proportional to 400,962, 553,327.56 and 222,114 is: 306,517.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,962 : 553,327.56 = 222,114 : x
  2. Step 2: Convert to fraction form
    400,962/553,327.56 = 222,114/x
  3. Step 3: Cross multiply
    400,962x = 553,327.56 × 222,114
  4. Step 4: Simplify right side
    400,962x = 122,901,797,661.84
  5. Step 5: Solve for x
    x = 122,901,797,661.84/400,962
  6. Step 6: Final answer
    x = 306,517.32

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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.