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Finding the Fourth Proportional to 269,509.20, 403,923.60 and 136,426.20

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Solution

The fourth proportional to 269,509.20, 403,923.60 and 136,426.20 is: 204,467.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,509.20 : 403,923.60 = 136,426.20 : x
  2. Step 2: Convert to fraction form
    269,509.20/403,923.60 = 136,426.20/x
  3. Step 3: Cross multiply
    269,509.20x = 403,923.60 × 136,426.20
  4. Step 4: Simplify right side
    269,509.20x = 55,105,761,838.32
  5. Step 5: Solve for x
    x = 55,105,761,838.32/269,509.20
  6. Step 6: Final answer
    x = 204,467.09

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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.