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Finding the Fourth Proportional to 203,559.80, 305,339.70 and 200,607.35

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Solution

The fourth proportional to 203,559.80, 305,339.70 and 200,607.35 is: 300,911.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,559.80 : 305,339.70 = 200,607.35 : x
  2. Step 2: Convert to fraction form
    203,559.80/305,339.70 = 200,607.35/x
  3. Step 3: Cross multiply
    203,559.80x = 305,339.70 × 200,607.35
  4. Step 4: Simplify right side
    203,559.80x = 61,253,388,066.80
  5. Step 5: Solve for x
    x = 61,253,388,066.80/203,559.80
  6. Step 6: Final answer
    x = 300,911.03

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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.