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Finding the Fourth Proportional to 222,553.98, 307,114.47 and 121,949.82

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Solution

The fourth proportional to 222,553.98, 307,114.47 and 121,949.82 is: 168,285.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,553.98 : 307,114.47 = 121,949.82 : x
  2. Step 2: Convert to fraction form
    222,553.98/307,114.47 = 121,949.82/x
  3. Step 3: Cross multiply
    222,553.98x = 307,114.47 × 121,949.82
  4. Step 4: Simplify right side
    222,553.98x = 37,452,554,335.90
  5. Step 5: Solve for x
    x = 37,452,554,335.90/222,553.98
  6. Step 6: Final answer
    x = 168,285.26

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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.