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Finding the Fourth Proportional to 269,938.60, 404,907.90 and 265,791.40

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Solution

The fourth proportional to 269,938.60, 404,907.90 and 265,791.40 is: 398,687.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,938.60 : 404,907.90 = 265,791.40 : x
  2. Step 2: Convert to fraction form
    269,938.60/404,907.90 = 265,791.40/x
  3. Step 3: Cross multiply
    269,938.60x = 404,907.90 × 265,791.40
  4. Step 4: Simplify right side
    269,938.60x = 107,621,037,612.06
  5. Step 5: Solve for x
    x = 107,621,037,612.06/269,938.60
  6. Step 6: Final answer
    x = 398,687.10

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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.