Home / 412,192.80-618,273-145,942.56

Finding the Fourth Proportional to 412,192.80, 618,273 and 145,942.56

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Solution

The fourth proportional to 412,192.80, 618,273 and 145,942.56 is: 218,908.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,192.80 : 618,273 = 145,942.56 : x
  2. Step 2: Convert to fraction form
    412,192.80/618,273 = 145,942.56/x
  3. Step 3: Cross multiply
    412,192.80x = 618,273 × 145,942.56
  4. Step 4: Simplify right side
    412,192.80x = 90,232,344,398.88
  5. Step 5: Solve for x
    x = 90,232,344,398.88/412,192.80
  6. Step 6: Final answer
    x = 218,908.10

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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.