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Finding the Fourth Proportional to 304,995.04, 420,893.15 and 169,049.43

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Solution

The fourth proportional to 304,995.04, 420,893.15 and 169,049.43 is: 233,288.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,995.04 : 420,893.15 = 169,049.43 : x
  2. Step 2: Convert to fraction form
    304,995.04/420,893.15 = 169,049.43/x
  3. Step 3: Cross multiply
    304,995.04x = 420,893.15 × 169,049.43
  4. Step 4: Simplify right side
    304,995.04x = 71,151,746,253.16
  5. Step 5: Solve for x
    x = 71,151,746,253.16/304,995.04
  6. Step 6: Final answer
    x = 233,288.21

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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.