Home / 442,816.20-664,224.30-143,318.70

Finding the Fourth Proportional to 442,816.20, 664,224.30 and 143,318.70

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Solution

The fourth proportional to 442,816.20, 664,224.30 and 143,318.70 is: 214,978.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,816.20 : 664,224.30 = 143,318.70 : x
  2. Step 2: Convert to fraction form
    442,816.20/664,224.30 = 143,318.70/x
  3. Step 3: Cross multiply
    442,816.20x = 664,224.30 × 143,318.70
  4. Step 4: Simplify right side
    442,816.20x = 95,195,763,184.41
  5. Step 5: Solve for x
    x = 95,195,763,184.41/442,816.20
  6. Step 6: Final answer
    x = 214,978.05

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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.