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Finding the Fourth Proportional to 290,560.05, 435,770.69 and 122,083.56

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Solution

The fourth proportional to 290,560.05, 435,770.69 and 122,083.56 is: 183,096.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,560.05 : 435,770.69 = 122,083.56 : x
  2. Step 2: Convert to fraction form
    290,560.05/435,770.69 = 122,083.56/x
  3. Step 3: Cross multiply
    290,560.05x = 435,770.69 × 122,083.56
  4. Step 4: Simplify right side
    290,560.05x = 53,200,436,568.44
  5. Step 5: Solve for x
    x = 53,200,436,568.44/290,560.05
  6. Step 6: Final answer
    x = 183,096.18

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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.