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Finding the Fourth Proportional to 353,891.60, 530,837.40 and 269,910.80

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Solution

The fourth proportional to 353,891.60, 530,837.40 and 269,910.80 is: 404,866.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,891.60 : 530,837.40 = 269,910.80 : x
  2. Step 2: Convert to fraction form
    353,891.60/530,837.40 = 269,910.80/x
  3. Step 3: Cross multiply
    353,891.60x = 530,837.40 × 269,910.80
  4. Step 4: Simplify right side
    353,891.60x = 143,278,747,303.92
  5. Step 5: Solve for x
    x = 143,278,747,303.92/353,891.60
  6. Step 6: Final answer
    x = 404,866.20

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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.