Home / 215,549.40-323,324.10-131,568.60

Finding the Fourth Proportional to 215,549.40, 323,324.10 and 131,568.60

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Solution

The fourth proportional to 215,549.40, 323,324.10 and 131,568.60 is: 197,352.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,549.40 : 323,324.10 = 131,568.60 : x
  2. Step 2: Convert to fraction form
    215,549.40/323,324.10 = 131,568.60/x
  3. Step 3: Cross multiply
    215,549.40x = 323,324.10 × 131,568.60
  4. Step 4: Simplify right side
    215,549.40x = 42,539,299,183.26
  5. Step 5: Solve for x
    x = 42,539,299,183.26/215,549.40
  6. Step 6: Final answer
    x = 197,352.90

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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.