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Finding the Fourth Proportional to 202,372.56, 303,724.08 and 143,265.60

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Solution

The fourth proportional to 202,372.56, 303,724.08 and 143,265.60 is: 215,015.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,372.56 : 303,724.08 = 143,265.60 : x
  2. Step 2: Convert to fraction form
    202,372.56/303,724.08 = 143,265.60/x
  3. Step 3: Cross multiply
    202,372.56x = 303,724.08 × 143,265.60
  4. Step 4: Simplify right side
    202,372.56x = 43,513,212,555.65
  5. Step 5: Solve for x
    x = 43,513,212,555.65/202,372.56
  6. Step 6: Final answer
    x = 215,015.38

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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.