Home / 231,390.20-346,394.10-137,847.80

Finding the Fourth Proportional to 231,390.20, 346,394.10 and 137,847.80

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Solution

The fourth proportional to 231,390.20, 346,394.10 and 137,847.80 is: 206,359.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,390.20 : 346,394.10 = 137,847.80 : x
  2. Step 2: Convert to fraction form
    231,390.20/346,394.10 = 137,847.80/x
  3. Step 3: Cross multiply
    231,390.20x = 346,394.10 × 137,847.80
  4. Step 4: Simplify right side
    231,390.20x = 47,749,664,617.98
  5. Step 5: Solve for x
    x = 47,749,664,617.98/231,390.20
  6. Step 6: Final answer
    x = 206,359.93

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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.