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Finding the Fourth Proportional to 501,418.62, 752,120.10 and 201,891.42

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Solution

The fourth proportional to 501,418.62, 752,120.10 and 201,891.42 is: 302,833.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,418.62 : 752,120.10 = 201,891.42 : x
  2. Step 2: Convert to fraction form
    501,418.62/752,120.10 = 201,891.42/x
  3. Step 3: Cross multiply
    501,418.62x = 752,120.10 × 201,891.42
  4. Step 4: Simplify right side
    501,418.62x = 151,846,594,999.54
  5. Step 5: Solve for x
    x = 151,846,594,999.54/501,418.62
  6. Step 6: Final answer
    x = 302,833.98

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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.