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Finding the Fourth Proportional to 218,352.20, 301,331.92 and 122,862.28

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Solution

The fourth proportional to 218,352.20, 301,331.92 and 122,862.28 is: 169,553.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,352.20 : 301,331.92 = 122,862.28 : x
  2. Step 2: Convert to fraction form
    218,352.20/301,331.92 = 122,862.28/x
  3. Step 3: Cross multiply
    218,352.20x = 301,331.92 × 122,862.28
  4. Step 4: Simplify right side
    218,352.20x = 37,022,326,727.98
  5. Step 5: Solve for x
    x = 37,022,326,727.98/218,352.20
  6. Step 6: Final answer
    x = 169,553.26

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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.