Home / 396,289.20-594,478.89-143,688.66

Finding the Fourth Proportional to 396,289.20, 594,478.89 and 143,688.66

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Solution

The fourth proportional to 396,289.20, 594,478.89 and 143,688.66 is: 215,549.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,289.20 : 594,478.89 = 143,688.66 : x
  2. Step 2: Convert to fraction form
    396,289.20/594,478.89 = 143,688.66/x
  3. Step 3: Cross multiply
    396,289.20x = 594,478.89 × 143,688.66
  4. Step 4: Simplify right side
    396,289.20x = 85,419,875,102.39
  5. Step 5: Solve for x
    x = 85,419,875,102.39/396,289.20
  6. Step 6: Final answer
    x = 215,549.34

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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.