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Finding the Fourth Proportional to 269,676.20, 404,417.10 and 136,512.20

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Solution

The fourth proportional to 269,676.20, 404,417.10 and 136,512.20 is: 204,719.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,676.20 : 404,417.10 = 136,512.20 : x
  2. Step 2: Convert to fraction form
    269,676.20/404,417.10 = 136,512.20/x
  3. Step 3: Cross multiply
    269,676.20x = 404,417.10 × 136,512.20
  4. Step 4: Simplify right side
    269,676.20x = 55,207,868,038.62
  5. Step 5: Solve for x
    x = 55,207,868,038.62/269,676.20
  6. Step 6: Final answer
    x = 204,719.10

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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.