Home / 412,976.20-619,310.70-163,606.60

Finding the Fourth Proportional to 412,976.20, 619,310.70 and 163,606.60

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Solution

The fourth proportional to 412,976.20, 619,310.70 and 163,606.60 is: 245,349.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,976.20 : 619,310.70 = 163,606.60 : x
  2. Step 2: Convert to fraction form
    412,976.20/619,310.70 = 163,606.60/x
  3. Step 3: Cross multiply
    412,976.20x = 619,310.70 × 163,606.60
  4. Step 4: Simplify right side
    412,976.20x = 101,323,317,970.62
  5. Step 5: Solve for x
    x = 101,323,317,970.62/412,976.20
  6. Step 6: Final answer
    x = 245,349.05

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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.