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Finding the Fourth Proportional to 269,628.32, 404,427.84 and 82,640.32

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Solution

The fourth proportional to 269,628.32, 404,427.84 and 82,640.32 is: 123,955.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,628.32 : 404,427.84 = 82,640.32 : x
  2. Step 2: Convert to fraction form
    269,628.32/404,427.84 = 82,640.32/x
  3. Step 3: Cross multiply
    269,628.32x = 404,427.84 × 82,640.32
  4. Step 4: Simplify right side
    269,628.32x = 33,422,046,114.51
  5. Step 5: Solve for x
    x = 33,422,046,114.51/269,628.32
  6. Step 6: Final answer
    x = 123,955.99

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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.