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Finding the Fourth Proportional to 400,093.82, 552,330.25 and 309,244.48

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Solution

The fourth proportional to 400,093.82, 552,330.25 and 309,244.48 is: 426,912.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,093.82 : 552,330.25 = 309,244.48 : x
  2. Step 2: Convert to fraction form
    400,093.82/552,330.25 = 309,244.48/x
  3. Step 3: Cross multiply
    400,093.82x = 552,330.25 × 309,244.48
  4. Step 4: Simplify right side
    400,093.82x = 170,805,078,795.58
  5. Step 5: Solve for x
    x = 170,805,078,795.58/400,093.82
  6. Step 6: Final answer
    x = 426,912.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.