Home / 442,912.20-664,433.10-143,341.80

Finding the Fourth Proportional to 442,912.20, 664,433.10 and 143,341.80

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Solution

The fourth proportional to 442,912.20, 664,433.10 and 143,341.80 is: 215,033.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,912.20 : 664,433.10 = 143,341.80 : x
  2. Step 2: Convert to fraction form
    442,912.20/664,433.10 = 143,341.80/x
  3. Step 3: Cross multiply
    442,912.20x = 664,433.10 × 143,341.80
  4. Step 4: Simplify right side
    442,912.20x = 95,241,036,533.58
  5. Step 5: Solve for x
    x = 95,241,036,533.58/442,912.20
  6. Step 6: Final answer
    x = 215,033.67

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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.