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Finding the Fourth Proportional to 269,369.80, 403,989.90 and 82,382.92

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Solution

The fourth proportional to 269,369.80, 403,989.90 and 82,382.92 is: 123,554.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,369.80 : 403,989.90 = 82,382.92 : x
  2. Step 2: Convert to fraction form
    269,369.80/403,989.90 = 82,382.92/x
  3. Step 3: Cross multiply
    269,369.80x = 403,989.90 × 82,382.92
  4. Step 4: Simplify right side
    269,369.80x = 33,281,867,612.51
  5. Step 5: Solve for x
    x = 33,281,867,612.51/269,369.80
  6. Step 6: Final answer
    x = 123,554.56

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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.