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Finding the Fourth Proportional to 299,432.30, 449,148.45 and 269,907.80

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Solution

The fourth proportional to 299,432.30, 449,148.45 and 269,907.80 is: 404,861.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,432.30 : 449,148.45 = 269,907.80 : x
  2. Step 2: Convert to fraction form
    299,432.30/449,148.45 = 269,907.80/x
  3. Step 3: Cross multiply
    299,432.30x = 449,148.45 × 269,907.80
  4. Step 4: Simplify right side
    299,432.30x = 121,228,670,012.91
  5. Step 5: Solve for x
    x = 121,228,670,012.91/299,432.30
  6. Step 6: Final answer
    x = 404,861.70

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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.