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Finding the Fourth Proportional to 252,806.39, 379,210.99 and 84,326.25

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Solution

The fourth proportional to 252,806.39, 379,210.99 and 84,326.25 is: 126,489.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,806.39 : 379,210.99 = 84,326.25 : x
  2. Step 2: Convert to fraction form
    252,806.39/379,210.99 = 84,326.25/x
  3. Step 3: Cross multiply
    252,806.39x = 379,210.99 × 84,326.25
  4. Step 4: Simplify right side
    252,806.39x = 31,977,440,745.49
  5. Step 5: Solve for x
    x = 31,977,440,745.49/252,806.39
  6. Step 6: Final answer
    x = 126,489.84

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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.