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Finding the Fourth Proportional to 220,283.79, 330,426 and 54,071.79

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Solution

The fourth proportional to 220,283.79, 330,426 and 54,071.79 is: 81,107.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,283.79 : 330,426 = 54,071.79 : x
  2. Step 2: Convert to fraction form
    220,283.79/330,426 = 54,071.79/x
  3. Step 3: Cross multiply
    220,283.79x = 330,426 × 54,071.79
  4. Step 4: Simplify right side
    220,283.79x = 17,866,725,282.54
  5. Step 5: Solve for x
    x = 17,866,725,282.54/220,283.79
  6. Step 6: Final answer
    x = 81,107.76

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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.