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Finding the Fourth Proportional to 222,515.56, 307,097.22 and 127,036

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Solution

The fourth proportional to 222,515.56, 307,097.22 and 127,036 is: 175,324.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,515.56 : 307,097.22 = 127,036 : x
  2. Step 2: Convert to fraction form
    222,515.56/307,097.22 = 127,036/x
  3. Step 3: Cross multiply
    222,515.56x = 307,097.22 × 127,036
  4. Step 4: Simplify right side
    222,515.56x = 39,012,402,439.92
  5. Step 5: Solve for x
    x = 39,012,402,439.92/222,515.56
  6. Step 6: Final answer
    x = 175,324.38

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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.