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Finding the Fourth Proportional to 203,342.58, 305,015.94 and 53,604.36

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Solution

The fourth proportional to 203,342.58, 305,015.94 and 53,604.36 is: 80,407.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,342.58 : 305,015.94 = 53,604.36 : x
  2. Step 2: Convert to fraction form
    203,342.58/305,015.94 = 53,604.36/x
  3. Step 3: Cross multiply
    203,342.58x = 305,015.94 × 53,604.36
  4. Step 4: Simplify right side
    203,342.58x = 16,350,184,253.50
  5. Step 5: Solve for x
    x = 16,350,184,253.50/203,342.58
  6. Step 6: Final answer
    x = 80,407.09

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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.