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Finding the Fourth Proportional to 275,288.76, 379,927.26 and 154,462.68

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Solution

The fourth proportional to 275,288.76, 379,927.26 and 154,462.68 is: 213,174.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,288.76 : 379,927.26 = 154,462.68 : x
  2. Step 2: Convert to fraction form
    275,288.76/379,927.26 = 154,462.68/x
  3. Step 3: Cross multiply
    275,288.76x = 379,927.26 × 154,462.68
  4. Step 4: Simplify right side
    275,288.76x = 58,684,582,784.66
  5. Step 5: Solve for x
    x = 58,684,582,784.66/275,288.76
  6. Step 6: Final answer
    x = 213,174.64

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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.