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Finding the Fourth Proportional to 269,070, 403,605.50 and 252,628.54

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Solution

The fourth proportional to 269,070, 403,605.50 and 252,628.54 is: 378,943.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,070 : 403,605.50 = 252,628.54 : x
  2. Step 2: Convert to fraction form
    269,070/403,605.50 = 252,628.54/x
  3. Step 3: Cross multiply
    269,070x = 403,605.50 × 252,628.54
  4. Step 4: Simplify right side
    269,070x = 101,962,268,200.97
  5. Step 5: Solve for x
    x = 101,962,268,200.97/269,070
  6. Step 6: Final answer
    x = 378,943.28

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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.