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Finding the Fourth Proportional to 203,465.20, 305,197.80 and 170,222.80

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Solution

The fourth proportional to 203,465.20, 305,197.80 and 170,222.80 is: 255,334.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,465.20 : 305,197.80 = 170,222.80 : x
  2. Step 2: Convert to fraction form
    203,465.20/305,197.80 = 170,222.80/x
  3. Step 3: Cross multiply
    203,465.20x = 305,197.80 × 170,222.80
  4. Step 4: Simplify right side
    203,465.20x = 51,951,624,069.84
  5. Step 5: Solve for x
    x = 51,951,624,069.84/203,465.20
  6. Step 6: Final answer
    x = 255,334.20

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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.