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Finding the Fourth Proportional to 269,381.84, 404,039.75 and 69,685.65

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Solution

The fourth proportional to 269,381.84, 404,039.75 and 69,685.65 is: 104,519.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,381.84 : 404,039.75 = 69,685.65 : x
  2. Step 2: Convert to fraction form
    269,381.84/404,039.75 = 69,685.65/x
  3. Step 3: Cross multiply
    269,381.84x = 404,039.75 × 69,685.65
  4. Step 4: Simplify right side
    269,381.84x = 28,155,772,256.16
  5. Step 5: Solve for x
    x = 28,155,772,256.16/269,381.84
  6. Step 6: Final answer
    x = 104,519.94

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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.