Home / 269,258.90-403,961.05-82,265.30

Finding the Fourth Proportional to 269,258.90, 403,961.05 and 82,265.30

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Solution

The fourth proportional to 269,258.90, 403,961.05 and 82,265.30 is: 123,420.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,258.90 : 403,961.05 = 82,265.30 : x
  2. Step 2: Convert to fraction form
    269,258.90/403,961.05 = 82,265.30/x
  3. Step 3: Cross multiply
    269,258.90x = 403,961.05 × 82,265.30
  4. Step 4: Simplify right side
    269,258.90x = 33,231,976,966.57
  5. Step 5: Solve for x
    x = 33,231,976,966.57/269,258.90
  6. Step 6: Final answer
    x = 123,420.16

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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.