Home / 269,454.09-404,431.43-136,428.60

Finding the Fourth Proportional to 269,454.09, 404,431.43 and 136,428.60

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Solution

The fourth proportional to 269,454.09, 404,431.43 and 136,428.60 is: 204,769.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,454.09 : 404,431.43 = 136,428.60 : x
  2. Step 2: Convert to fraction form
    269,454.09/404,431.43 = 136,428.60/x
  3. Step 3: Cross multiply
    269,454.09x = 404,431.43 × 136,428.60
  4. Step 4: Simplify right side
    269,454.09x = 55,176,013,108.76
  5. Step 5: Solve for x
    x = 55,176,013,108.76/269,454.09
  6. Step 6: Final answer
    x = 204,769.63

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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.