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Finding the Fourth Proportional to 269,814.80, 404,722.20 and 137,104.40

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Solution

The fourth proportional to 269,814.80, 404,722.20 and 137,104.40 is: 205,656.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,814.80 : 404,722.20 = 137,104.40 : x
  2. Step 2: Convert to fraction form
    269,814.80/404,722.20 = 137,104.40/x
  3. Step 3: Cross multiply
    269,814.80x = 404,722.20 × 137,104.40
  4. Step 4: Simplify right side
    269,814.80x = 55,489,194,397.68
  5. Step 5: Solve for x
    x = 55,489,194,397.68/269,814.80
  6. Step 6: Final answer
    x = 205,656.60

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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.