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Finding the Fourth Proportional to 222,855, 307,539.96 and 122,253

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Solution

The fourth proportional to 222,855, 307,539.96 and 122,253 is: 168,709.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,855 : 307,539.96 = 122,253 : x
  2. Step 2: Convert to fraction form
    222,855/307,539.96 = 122,253/x
  3. Step 3: Cross multiply
    222,855x = 307,539.96 × 122,253
  4. Step 4: Simplify right side
    222,855x = 37,597,682,729.88
  5. Step 5: Solve for x
    x = 37,597,682,729.88/222,855
  6. Step 6: Final answer
    x = 168,709.17

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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.