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Finding the Fourth Proportional to 220,878, 331,320.24 and 54,666

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Solution

The fourth proportional to 220,878, 331,320.24 and 54,666 is: 81,999.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,878 : 331,320.24 = 54,666 : x
  2. Step 2: Convert to fraction form
    220,878/331,320.24 = 54,666/x
  3. Step 3: Cross multiply
    220,878x = 331,320.24 × 54,666
  4. Step 4: Simplify right side
    220,878x = 18,111,952,239.84
  5. Step 5: Solve for x
    x = 18,111,952,239.84/220,878
  6. Step 6: Final answer
    x = 81,999.80

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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.