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Finding the Fourth Proportional to 269,550.80, 404,423.40 and 259,830.80

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Solution

The fourth proportional to 269,550.80, 404,423.40 and 259,830.80 is: 389,839.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,550.80 : 404,423.40 = 259,830.80 : x
  2. Step 2: Convert to fraction form
    269,550.80/404,423.40 = 259,830.80/x
  3. Step 3: Cross multiply
    269,550.80x = 404,423.40 × 259,830.80
  4. Step 4: Simplify right side
    269,550.80x = 105,081,655,560.72
  5. Step 5: Solve for x
    x = 105,081,655,560.72/269,550.80
  6. Step 6: Final answer
    x = 389,839.89

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1.5x scale

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.