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Finding the Fourth Proportional to 222,890.65, 307,589.07 and 127,399.39

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Solution

The fourth proportional to 222,890.65, 307,589.07 and 127,399.39 is: 175,811.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,890.65 : 307,589.07 = 127,399.39 : x
  2. Step 2: Convert to fraction form
    222,890.65/307,589.07 = 127,399.39/x
  3. Step 3: Cross multiply
    222,890.65x = 307,589.07 × 127,399.39
  4. Step 4: Simplify right side
    222,890.65x = 39,186,659,597.44
  5. Step 5: Solve for x
    x = 39,186,659,597.44/222,890.65
  6. Step 6: Final answer
    x = 175,811.14

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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.