Home / 327,929.86-491,912.37-103,307.87

Finding the Fourth Proportional to 327,929.86, 491,912.37 and 103,307.87

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Solution

The fourth proportional to 327,929.86, 491,912.37 and 103,307.87 is: 154,967.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,929.86 : 491,912.37 = 103,307.87 : x
  2. Step 2: Convert to fraction form
    327,929.86/491,912.37 = 103,307.87/x
  3. Step 3: Cross multiply
    327,929.86x = 491,912.37 × 103,307.87
  4. Step 4: Simplify right side
    327,929.86x = 50,818,419,171.35
  5. Step 5: Solve for x
    x = 50,818,419,171.35/327,929.86
  6. Step 6: Final answer
    x = 154,967.34

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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.