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Finding the Fourth Proportional to 275,049.41, 379,567.67 and 154,190.66

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Solution

The fourth proportional to 275,049.41, 379,567.67 and 154,190.66 is: 212,782.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,049.41 : 379,567.67 = 154,190.66 : x
  2. Step 2: Convert to fraction form
    275,049.41/379,567.67 = 154,190.66/x
  3. Step 3: Cross multiply
    275,049.41x = 379,567.67 × 154,190.66
  4. Step 4: Simplify right side
    275,049.41x = 58,525,786,883.17
  5. Step 5: Solve for x
    x = 58,525,786,883.17/275,049.41
  6. Step 6: Final answer
    x = 212,782.82

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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.