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Finding the Fourth Proportional to 222,488.78, 333,806.97 and 89,300.48

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Solution

The fourth proportional to 222,488.78, 333,806.97 and 89,300.48 is: 133,980.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,488.78 : 333,806.97 = 89,300.48 : x
  2. Step 2: Convert to fraction form
    222,488.78/333,806.97 = 89,300.48/x
  3. Step 3: Cross multiply
    222,488.78x = 333,806.97 × 89,300.48
  4. Step 4: Simplify right side
    222,488.78x = 29,809,121,314.19
  5. Step 5: Solve for x
    x = 29,809,121,314.19/222,488.78
  6. Step 6: Final answer
    x = 133,980.34

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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.