Home / 269,813.25-371,996.15-221,236.20

Finding the Fourth Proportional to 269,813.25, 371,996.15 and 221,236.20

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Solution

The fourth proportional to 269,813.25, 371,996.15 and 221,236.20 is: 305,022.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,813.25 : 371,996.15 = 221,236.20 : x
  2. Step 2: Convert to fraction form
    269,813.25/371,996.15 = 221,236.20/x
  3. Step 3: Cross multiply
    269,813.25x = 371,996.15 × 221,236.20
  4. Step 4: Simplify right side
    269,813.25x = 82,299,013,534.45
  5. Step 5: Solve for x
    x = 82,299,013,534.45/269,813.25
  6. Step 6: Final answer
    x = 305,022.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.