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Finding the Fourth Proportional to 220,414.51, 331,009.40 and 217,259.11

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Solution

The fourth proportional to 220,414.51, 331,009.40 and 217,259.11 is: 326,270.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,414.51 : 331,009.40 = 217,259.11 : x
  2. Step 2: Convert to fraction form
    220,414.51/331,009.40 = 217,259.11/x
  3. Step 3: Cross multiply
    220,414.51x = 331,009.40 × 217,259.11
  4. Step 4: Simplify right side
    220,414.51x = 71,914,807,645.63
  5. Step 5: Solve for x
    x = 71,914,807,645.63/220,414.51
  6. Step 6: Final answer
    x = 326,270.75

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.