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Finding the Fourth Proportional to 222,439.78, 333,590.67 and 80,266.56

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Solution

The fourth proportional to 222,439.78, 333,590.67 and 80,266.56 is: 120,374.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,439.78 : 333,590.67 = 80,266.56 : x
  2. Step 2: Convert to fraction form
    222,439.78/333,590.67 = 80,266.56/x
  3. Step 3: Cross multiply
    222,439.78x = 333,590.67 × 80,266.56
  4. Step 4: Simplify right side
    222,439.78x = 26,776,174,278.03
  5. Step 5: Solve for x
    x = 26,776,174,278.03/222,439.78
  6. Step 6: Final answer
    x = 120,374.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.