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Finding the Fourth Proportional to 202,427.46, 303,438 and 69,216.62

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Solution

The fourth proportional to 202,427.46, 303,438 and 69,216.62 is: 103,755.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,427.46 : 303,438 = 69,216.62 : x
  2. Step 2: Convert to fraction form
    202,427.46/303,438 = 69,216.62/x
  3. Step 3: Cross multiply
    202,427.46x = 303,438 × 69,216.62
  4. Step 4: Simplify right side
    202,427.46x = 21,002,952,739.56
  5. Step 5: Solve for x
    x = 21,002,952,739.56/202,427.46
  6. Step 6: Final answer
    x = 103,755.45

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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.