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Finding the Fourth Proportional to 269,806.51, 404,710.99 and 70,112.75

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Solution

The fourth proportional to 269,806.51, 404,710.99 and 70,112.75 is: 105,169.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,806.51 : 404,710.99 = 70,112.75 : x
  2. Step 2: Convert to fraction form
    269,806.51/404,710.99 = 70,112.75/x
  3. Step 3: Cross multiply
    269,806.51x = 404,710.99 × 70,112.75
  4. Step 4: Simplify right side
    269,806.51x = 28,375,401,300.62
  5. Step 5: Solve for x
    x = 28,375,401,300.62/269,806.51
  6. Step 6: Final answer
    x = 105,169.45

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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.