Home / 202,288.37-303,398.54-74,178.17

Finding the Fourth Proportional to 202,288.37, 303,398.54 and 74,178.17

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Solution

The fourth proportional to 202,288.37, 303,398.54 and 74,178.17 is: 111,254.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,288.37 : 303,398.54 = 74,178.17 : x
  2. Step 2: Convert to fraction form
    202,288.37/303,398.54 = 74,178.17/x
  3. Step 3: Cross multiply
    202,288.37x = 303,398.54 × 74,178.17
  4. Step 4: Simplify right side
    202,288.37x = 22,505,546,589.99
  5. Step 5: Solve for x
    x = 22,505,546,589.99/202,288.37
  6. Step 6: Final answer
    x = 111,254.78

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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.