Home / 343,775.27-515,135.46-143,986.34

Finding the Fourth Proportional to 343,775.27, 515,135.46 and 143,986.34

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Solution

The fourth proportional to 343,775.27, 515,135.46 and 143,986.34 is: 215,758.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,775.27 : 515,135.46 = 143,986.34 : x
  2. Step 2: Convert to fraction form
    343,775.27/515,135.46 = 143,986.34/x
  3. Step 3: Cross multiply
    343,775.27x = 515,135.46 × 143,986.34
  4. Step 4: Simplify right side
    343,775.27x = 74,172,469,489.62
  5. Step 5: Solve for x
    x = 74,172,469,489.62/343,775.27
  6. Step 6: Final answer
    x = 215,758.60

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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.