Home / 204,890.40-307,335.60-149,121.90

Finding the Fourth Proportional to 204,890.40, 307,335.60 and 149,121.90

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Solution

The fourth proportional to 204,890.40, 307,335.60 and 149,121.90 is: 223,682.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,890.40 : 307,335.60 = 149,121.90 : x
  2. Step 2: Convert to fraction form
    204,890.40/307,335.60 = 149,121.90/x
  3. Step 3: Cross multiply
    204,890.40x = 307,335.60 × 149,121.90
  4. Step 4: Simplify right side
    204,890.40x = 45,830,468,609.64
  5. Step 5: Solve for x
    x = 45,830,468,609.64/204,890.40
  6. Step 6: Final answer
    x = 223,682.85

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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.