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Finding the Fourth Proportional to 275,204.56, 379,823.80 and 167,836.88

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Solution

The fourth proportional to 275,204.56, 379,823.80 and 167,836.88 is: 231,640.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,204.56 : 379,823.80 = 167,836.88 : x
  2. Step 2: Convert to fraction form
    275,204.56/379,823.80 = 167,836.88/x
  3. Step 3: Cross multiply
    275,204.56x = 379,823.80 × 167,836.88
  4. Step 4: Simplify right side
    275,204.56x = 63,748,441,541.74
  5. Step 5: Solve for x
    x = 63,748,441,541.74/275,204.56
  6. Step 6: Final answer
    x = 231,640.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.