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Finding the Fourth Proportional to 200,540.35, 300,877.52 and 65,610.60

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Solution

The fourth proportional to 200,540.35, 300,877.52 and 65,610.60 is: 98,437.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,540.35 : 300,877.52 = 65,610.60 : x
  2. Step 2: Convert to fraction form
    200,540.35/300,877.52 = 65,610.60/x
  3. Step 3: Cross multiply
    200,540.35x = 300,877.52 × 65,610.60
  4. Step 4: Simplify right side
    200,540.35x = 19,740,752,781.27
  5. Step 5: Solve for x
    x = 19,740,752,781.27/200,540.35
  6. Step 6: Final answer
    x = 98,437.81

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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.