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Finding the Fourth Proportional to 269,090.78, 403,496.01 and 100,472.43

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Solution

The fourth proportional to 269,090.78, 403,496.01 and 100,472.43 is: 150,656.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,090.78 : 403,496.01 = 100,472.43 : x
  2. Step 2: Convert to fraction form
    269,090.78/403,496.01 = 100,472.43/x
  3. Step 3: Cross multiply
    269,090.78x = 403,496.01 × 100,472.43
  4. Step 4: Simplify right side
    269,090.78x = 40,540,224,620.00
  5. Step 5: Solve for x
    x = 40,540,224,620.00/269,090.78
  6. Step 6: Final answer
    x = 150,656.32

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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.