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Finding the Fourth Proportional to 200,627.10, 300,913.11 and 140,473.26

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Solution

The fourth proportional to 200,627.10, 300,913.11 and 140,473.26 is: 210,690.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,627.10 : 300,913.11 = 140,473.26 : x
  2. Step 2: Convert to fraction form
    200,627.10/300,913.11 = 140,473.26/x
  3. Step 3: Cross multiply
    200,627.10x = 300,913.11 × 140,473.26
  4. Step 4: Simplify right side
    200,627.10x = 42,270,245,538.44
  5. Step 5: Solve for x
    x = 42,270,245,538.44/200,627.10
  6. Step 6: Final answer
    x = 210,690.61

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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.