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Finding the Fourth Proportional to 304,976.51, 420,855.43 and 169,016.27

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Solution

The fourth proportional to 304,976.51, 420,855.43 and 169,016.27 is: 233,235.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,976.51 : 420,855.43 = 169,016.27 : x
  2. Step 2: Convert to fraction form
    304,976.51/420,855.43 = 169,016.27/x
  3. Step 3: Cross multiply
    304,976.51x = 420,855.43 × 169,016.27
  4. Step 4: Simplify right side
    304,976.51x = 71,131,414,987.85
  5. Step 5: Solve for x
    x = 71,131,414,987.85/304,976.51
  6. Step 6: Final answer
    x = 233,235.72

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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.