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Finding the Fourth Proportional to 220,006.40, 303,583.70 and 123,196.79

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Solution

The fourth proportional to 220,006.40, 303,583.70 and 123,196.79 is: 169,997.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,006.40 : 303,583.70 = 123,196.79 : x
  2. Step 2: Convert to fraction form
    220,006.40/303,583.70 = 123,196.79/x
  3. Step 3: Cross multiply
    220,006.40x = 303,583.70 × 123,196.79
  4. Step 4: Simplify right side
    220,006.40x = 37,400,538,403.27
  5. Step 5: Solve for x
    x = 37,400,538,403.27/220,006.40
  6. Step 6: Final answer
    x = 169,997.51

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.