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Finding the Fourth Proportional to 269,918.20, 404,531.70 and 207,278.20

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Solution

The fourth proportional to 269,918.20, 404,531.70 and 207,278.20 is: 310,651.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,918.20 : 404,531.70 = 207,278.20 : x
  2. Step 2: Convert to fraction form
    269,918.20/404,531.70 = 207,278.20/x
  3. Step 3: Cross multiply
    269,918.20x = 404,531.70 × 207,278.20
  4. Step 4: Simplify right side
    269,918.20x = 83,850,602,618.94
  5. Step 5: Solve for x
    x = 83,850,602,618.94/269,918.20
  6. Step 6: Final answer
    x = 310,651.90

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.