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Finding the Fourth Proportional to 203,200.80, 304,282.80 and 161,728.80

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Solution

The fourth proportional to 203,200.80, 304,282.80 and 161,728.80 is: 242,180.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,200.80 : 304,282.80 = 161,728.80 : x
  2. Step 2: Convert to fraction form
    203,200.80/304,282.80 = 161,728.80/x
  3. Step 3: Cross multiply
    203,200.80x = 304,282.80 × 161,728.80
  4. Step 4: Simplify right side
    203,200.80x = 49,211,292,104.64
  5. Step 5: Solve for x
    x = 49,211,292,104.64/203,200.80
  6. Step 6: Final answer
    x = 242,180.60

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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.