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Finding the Fourth Proportional to 300,995.92, 415,379.04 and 165,042.28

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Solution

The fourth proportional to 300,995.92, 415,379.04 and 165,042.28 is: 227,760.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,995.92 : 415,379.04 = 165,042.28 : x
  2. Step 2: Convert to fraction form
    300,995.92/415,379.04 = 165,042.28/x
  3. Step 3: Cross multiply
    300,995.92x = 415,379.04 × 165,042.28
  4. Step 4: Simplify right side
    300,995.92x = 68,555,103,825.81
  5. Step 5: Solve for x
    x = 68,555,103,825.81/300,995.92
  6. Step 6: Final answer
    x = 227,760.91

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1.5x scale

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.