Home / 439,286.20-658,491.90-202,215.40

Finding the Fourth Proportional to 439,286.20, 658,491.90 and 202,215.40

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Solution

The fourth proportional to 439,286.20, 658,491.90 and 202,215.40 is: 303,121.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,286.20 : 658,491.90 = 202,215.40 : x
  2. Step 2: Convert to fraction form
    439,286.20/658,491.90 = 202,215.40/x
  3. Step 3: Cross multiply
    439,286.20x = 658,491.90 × 202,215.40
  4. Step 4: Simplify right side
    439,286.20x = 133,157,202,955.26
  5. Step 5: Solve for x
    x = 133,157,202,955.26/439,286.20
  6. Step 6: Final answer
    x = 303,121.75

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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.