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Finding the Fourth Proportional to 203,485.80, 305,228.70 and 194,847.15

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Solution

The fourth proportional to 203,485.80, 305,228.70 and 194,847.15 is: 292,270.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,485.80 : 305,228.70 = 194,847.15 : x
  2. Step 2: Convert to fraction form
    203,485.80/305,228.70 = 194,847.15/x
  3. Step 3: Cross multiply
    203,485.80x = 305,228.70 × 194,847.15
  4. Step 4: Simplify right side
    203,485.80x = 59,472,942,293.21
  5. Step 5: Solve for x
    x = 59,472,942,293.21/203,485.80
  6. Step 6: Final answer
    x = 292,270.73

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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.