Home / 412,939.20-619,255.20-163,569.60

Finding the Fourth Proportional to 412,939.20, 619,255.20 and 163,569.60

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Solution

The fourth proportional to 412,939.20, 619,255.20 and 163,569.60 is: 245,293.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,939.20 : 619,255.20 = 163,569.60 : x
  2. Step 2: Convert to fraction form
    412,939.20/619,255.20 = 163,569.60/x
  3. Step 3: Cross multiply
    412,939.20x = 619,255.20 × 163,569.60
  4. Step 4: Simplify right side
    412,939.20x = 101,291,325,361.92
  5. Step 5: Solve for x
    x = 101,291,325,361.92/412,939.20
  6. Step 6: Final answer
    x = 245,293.56

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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.