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Finding the Fourth Proportional to 202,287.25, 303,445.46 and 77,628.25

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Solution

The fourth proportional to 202,287.25, 303,445.46 and 77,628.25 is: 116,447.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,287.25 : 303,445.46 = 77,628.25 : x
  2. Step 2: Convert to fraction form
    202,287.25/303,445.46 = 77,628.25/x
  3. Step 3: Cross multiply
    202,287.25x = 303,445.46 × 77,628.25
  4. Step 4: Simplify right side
    202,287.25x = 23,555,940,030.25
  5. Step 5: Solve for x
    x = 23,555,940,030.25/202,287.25
  6. Step 6: Final answer
    x = 116,447.97

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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.