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Finding the Fourth Proportional to 300,514.38, 414,721.02 and 171,473.87

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Solution

The fourth proportional to 300,514.38, 414,721.02 and 171,473.87 is: 236,640.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,514.38 : 414,721.02 = 171,473.87 : x
  2. Step 2: Convert to fraction form
    300,514.38/414,721.02 = 171,473.87/x
  3. Step 3: Cross multiply
    300,514.38x = 414,721.02 × 171,473.87
  4. Step 4: Simplify right side
    300,514.38x = 71,113,816,196.14
  5. Step 5: Solve for x
    x = 71,113,816,196.14/300,514.38
  6. Step 6: Final answer
    x = 236,640.31

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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.