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Finding the Fourth Proportional to 222,489.78, 333,808.47 and 89,301.48

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Solution

The fourth proportional to 222,489.78, 333,808.47 and 89,301.48 is: 133,981.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,489.78 : 333,808.47 = 89,301.48 : x
  2. Step 2: Convert to fraction form
    222,489.78/333,808.47 = 89,301.48/x
  3. Step 3: Cross multiply
    222,489.78x = 333,808.47 × 89,301.48
  4. Step 4: Simplify right side
    222,489.78x = 29,809,590,407.54
  5. Step 5: Solve for x
    x = 29,809,590,407.54/222,489.78
  6. Step 6: Final answer
    x = 133,981.84

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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.