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Finding the Fourth Proportional to 304,979.26, 420,859.22 and 169,019.02

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Solution

The fourth proportional to 304,979.26, 420,859.22 and 169,019.02 is: 233,239.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,979.26 : 420,859.22 = 169,019.02 : x
  2. Step 2: Convert to fraction form
    304,979.26/420,859.22 = 169,019.02/x
  3. Step 3: Cross multiply
    304,979.26x = 420,859.22 × 169,019.02
  4. Step 4: Simplify right side
    304,979.26x = 71,133,212,922.36
  5. Step 5: Solve for x
    x = 71,133,212,922.36/304,979.26
  6. Step 6: Final answer
    x = 233,239.51

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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.