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Finding the Fourth Proportional to 269,402.80, 404,687.40 and 259,488.40

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Solution

The fourth proportional to 269,402.80, 404,687.40 and 259,488.40 is: 389,794.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,402.80 : 404,687.40 = 259,488.40 : x
  2. Step 2: Convert to fraction form
    269,402.80/404,687.40 = 259,488.40/x
  3. Step 3: Cross multiply
    269,402.80x = 404,687.40 × 259,488.40
  4. Step 4: Simplify right side
    269,402.80x = 105,011,685,926.16
  5. Step 5: Solve for x
    x = 105,011,685,926.16/269,402.80
  6. Step 6: Final answer
    x = 389,794.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.