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Finding the Fourth Proportional to 299,619.80, 449,429.70 and 269,552.60

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Solution

The fourth proportional to 299,619.80, 449,429.70 and 269,552.60 is: 404,328.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,619.80 : 449,429.70 = 269,552.60 : x
  2. Step 2: Convert to fraction form
    299,619.80/449,429.70 = 269,552.60/x
  3. Step 3: Cross multiply
    299,619.80x = 449,429.70 × 269,552.60
  4. Step 4: Simplify right side
    299,619.80x = 121,144,944,152.22
  5. Step 5: Solve for x
    x = 121,144,944,152.22/299,619.80
  6. Step 6: Final answer
    x = 404,328.90

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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.