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Finding the Fourth Proportional to 203,473.20, 305,209.80 and 170,230.80

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Solution

The fourth proportional to 203,473.20, 305,209.80 and 170,230.80 is: 255,346.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,473.20 : 305,209.80 = 170,230.80 : x
  2. Step 2: Convert to fraction form
    203,473.20/305,209.80 = 170,230.80/x
  3. Step 3: Cross multiply
    203,473.20x = 305,209.80 × 170,230.80
  4. Step 4: Simplify right side
    203,473.20x = 51,956,108,421.84
  5. Step 5: Solve for x
    x = 51,956,108,421.84/203,473.20
  6. Step 6: Final answer
    x = 255,346.20

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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.