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Finding the Fourth Proportional to 299,426.80, 449,140.20 and 269,902.30

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Solution

The fourth proportional to 299,426.80, 449,140.20 and 269,902.30 is: 404,853.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,426.80 : 449,140.20 = 269,902.30 : x
  2. Step 2: Convert to fraction form
    299,426.80/449,140.20 = 269,902.30/x
  3. Step 3: Cross multiply
    299,426.80x = 449,140.20 × 269,902.30
  4. Step 4: Simplify right side
    299,426.80x = 121,223,973,002.46
  5. Step 5: Solve for x
    x = 121,223,973,002.46/299,426.80
  6. Step 6: Final answer
    x = 404,853.45

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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.