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Finding the Fourth Proportional to 275,752.23, 380,523.47 and 154,898.61

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Solution

The fourth proportional to 275,752.23, 380,523.47 and 154,898.61 is: 213,751.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,752.23 : 380,523.47 = 154,898.61 : x
  2. Step 2: Convert to fraction form
    275,752.23/380,523.47 = 154,898.61/x
  3. Step 3: Cross multiply
    275,752.23x = 380,523.47 × 154,898.61
  4. Step 4: Simplify right side
    275,752.23x = 58,942,555,800.88
  5. Step 5: Solve for x
    x = 58,942,555,800.88/275,752.23
  6. Step 6: Final answer
    x = 213,751.87

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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.