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Finding the Fourth Proportional to 299,460.30, 449,190.45 and 149,723.70

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Solution

The fourth proportional to 299,460.30, 449,190.45 and 149,723.70 is: 224,585.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,460.30 : 449,190.45 = 149,723.70 : x
  2. Step 2: Convert to fraction form
    299,460.30/449,190.45 = 149,723.70/x
  3. Step 3: Cross multiply
    299,460.30x = 449,190.45 × 149,723.70
  4. Step 4: Simplify right side
    299,460.30x = 67,254,456,178.67
  5. Step 5: Solve for x
    x = 67,254,456,178.67/299,460.30
  6. Step 6: Final answer
    x = 224,585.55

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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.