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Finding the Fourth Proportional to 259,349.10, 388,930.03 and 109,600.96

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Solution

The fourth proportional to 259,349.10, 388,930.03 and 109,600.96 is: 164,361.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,349.10 : 388,930.03 = 109,600.96 : x
  2. Step 2: Convert to fraction form
    259,349.10/388,930.03 = 109,600.96/x
  3. Step 3: Cross multiply
    259,349.10x = 388,930.03 × 109,600.96
  4. Step 4: Simplify right side
    259,349.10x = 42,627,102,168.17
  5. Step 5: Solve for x
    x = 42,627,102,168.17/259,349.10
  6. Step 6: Final answer
    x = 164,361.87

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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.