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Finding the Fourth Proportional to 231,346.80, 347,020.20 and 222,489.45

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Solution

The fourth proportional to 231,346.80, 347,020.20 and 222,489.45 is: 333,734.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,346.80 : 347,020.20 = 222,489.45 : x
  2. Step 2: Convert to fraction form
    231,346.80/347,020.20 = 222,489.45/x
  3. Step 3: Cross multiply
    231,346.80x = 347,020.20 × 222,489.45
  4. Step 4: Simplify right side
    231,346.80x = 77,208,333,436.89
  5. Step 5: Solve for x
    x = 77,208,333,436.89/231,346.80
  6. Step 6: Final answer
    x = 333,734.18

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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.