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Finding the Fourth Proportional to 203,597.05, 280,965.63 and 112,958.96

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Solution

The fourth proportional to 203,597.05, 280,965.63 and 112,958.96 is: 155,884.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,597.05 : 280,965.63 = 112,958.96 : x
  2. Step 2: Convert to fraction form
    203,597.05/280,965.63 = 112,958.96/x
  3. Step 3: Cross multiply
    203,597.05x = 280,965.63 × 112,958.96
  4. Step 4: Simplify right side
    203,597.05x = 31,737,585,360.54
  5. Step 5: Solve for x
    x = 31,737,585,360.54/203,597.05
  6. Step 6: Final answer
    x = 155,884.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.