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Finding the Fourth Proportional to 299,937.48, 449,906.15 and 120,103.85

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Solution

The fourth proportional to 299,937.48, 449,906.15 and 120,103.85 is: 180,155.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,937.48 : 449,906.15 = 120,103.85 : x
  2. Step 2: Convert to fraction form
    299,937.48/449,906.15 = 120,103.85/x
  3. Step 3: Cross multiply
    299,937.48x = 449,906.15 × 120,103.85
  4. Step 4: Simplify right side
    299,937.48x = 54,035,457,903.63
  5. Step 5: Solve for x
    x = 54,035,457,903.63/299,937.48
  6. Step 6: Final answer
    x = 180,155.74

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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.