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Finding the Fourth Proportional to 412,342.40, 618,153.60 and 159,795.20

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Solution

The fourth proportional to 412,342.40, 618,153.60 and 159,795.20 is: 239,553.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,342.40 : 618,153.60 = 159,795.20 : x
  2. Step 2: Convert to fraction form
    412,342.40/618,153.60 = 159,795.20/x
  3. Step 3: Cross multiply
    412,342.40x = 618,153.60 × 159,795.20
  4. Step 4: Simplify right side
    412,342.40x = 98,777,978,142.72
  5. Step 5: Solve for x
    x = 98,777,978,142.72/412,342.40
  6. Step 6: Final answer
    x = 239,553.29

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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.