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Finding the Fourth Proportional to 269,667.20, 404,403.60 and 136,503.20

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Solution

The fourth proportional to 269,667.20, 404,403.60 and 136,503.20 is: 204,705.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,667.20 : 404,403.60 = 136,503.20 : x
  2. Step 2: Convert to fraction form
    269,667.20/404,403.60 = 136,503.20/x
  3. Step 3: Cross multiply
    269,667.20x = 404,403.60 × 136,503.20
  4. Step 4: Simplify right side
    269,667.20x = 55,202,385,491.52
  5. Step 5: Solve for x
    x = 55,202,385,491.52/269,667.20
  6. Step 6: Final answer
    x = 204,705.60

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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.