Home / 327,899.20-491,762.40-103,259.20

Finding the Fourth Proportional to 327,899.20, 491,762.40 and 103,259.20

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Solution

The fourth proportional to 327,899.20, 491,762.40 and 103,259.20 is: 154,861.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,899.20 : 491,762.40 = 103,259.20 : x
  2. Step 2: Convert to fraction form
    327,899.20/491,762.40 = 103,259.20/x
  3. Step 3: Cross multiply
    327,899.20x = 491,762.40 × 103,259.20
  4. Step 4: Simplify right side
    327,899.20x = 50,778,992,014.08
  5. Step 5: Solve for x
    x = 50,778,992,014.08/327,899.20
  6. Step 6: Final answer
    x = 154,861.59

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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.