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Finding the Fourth Proportional to 299,458.80, 449,188.20 and 149,722.20

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Solution

The fourth proportional to 299,458.80, 449,188.20 and 149,722.20 is: 224,583.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,458.80 : 449,188.20 = 149,722.20 : x
  2. Step 2: Convert to fraction form
    299,458.80/449,188.20 = 149,722.20/x
  3. Step 3: Cross multiply
    299,458.80x = 449,188.20 × 149,722.20
  4. Step 4: Simplify right side
    299,458.80x = 67,253,445,518.04
  5. Step 5: Solve for x
    x = 67,253,445,518.04/299,458.80
  6. Step 6: Final answer
    x = 224,583.30

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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.