Home / 203,863.20-306,122.85-153,999.60

Finding the Fourth Proportional to 203,863.20, 306,122.85 and 153,999.60

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Solution

The fourth proportional to 203,863.20, 306,122.85 and 153,999.60 is: 231,247.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,863.20 : 306,122.85 = 153,999.60 : x
  2. Step 2: Convert to fraction form
    203,863.20/306,122.85 = 153,999.60/x
  3. Step 3: Cross multiply
    203,863.20x = 306,122.85 × 153,999.60
  4. Step 4: Simplify right side
    203,863.20x = 47,142,796,450.86
  5. Step 5: Solve for x
    x = 47,142,796,450.86/203,863.20
  6. Step 6: Final answer
    x = 231,247.21

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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.