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Finding the Fourth Proportional to 304,936.66, 420,806.32 and 168,969.42

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Solution

The fourth proportional to 304,936.66, 420,806.32 and 168,969.42 is: 233,174.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,936.66 : 420,806.32 = 168,969.42 : x
  2. Step 2: Convert to fraction form
    304,936.66/420,806.32 = 168,969.42/x
  3. Step 3: Cross multiply
    304,936.66x = 420,806.32 × 168,969.42
  4. Step 4: Simplify right side
    304,936.66x = 71,103,399,822.73
  5. Step 5: Solve for x
    x = 71,103,399,822.73/304,936.66
  6. Step 6: Final answer
    x = 233,174.32

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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.