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Finding the Fourth Proportional to 202,309.13, 303,478.27 and 77,650.13

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Solution

The fourth proportional to 202,309.13, 303,478.27 and 77,650.13 is: 116,480.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,309.13 : 303,478.27 = 77,650.13 : x
  2. Step 2: Convert to fraction form
    202,309.13/303,478.27 = 77,650.13/x
  3. Step 3: Cross multiply
    202,309.13x = 303,478.27 × 77,650.13
  4. Step 4: Simplify right side
    202,309.13x = 23,565,125,600.28
  5. Step 5: Solve for x
    x = 23,565,125,600.28/202,309.13
  6. Step 6: Final answer
    x = 116,480.78

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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.