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Finding the Fourth Proportional to 272,069.08, 408,104.58 and 82,531.09

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Solution

The fourth proportional to 272,069.08, 408,104.58 and 82,531.09 is: 123,796.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,069.08 : 408,104.58 = 82,531.09 : x
  2. Step 2: Convert to fraction form
    272,069.08/408,104.58 = 82,531.09/x
  3. Step 3: Cross multiply
    272,069.08x = 408,104.58 × 82,531.09
  4. Step 4: Simplify right side
    272,069.08x = 33,681,315,821.39
  5. Step 5: Solve for x
    x = 33,681,315,821.39/272,069.08
  6. Step 6: Final answer
    x = 123,796.93

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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.