Home / 260,960.61-390,949.92-204,629.70

Finding the Fourth Proportional to 260,960.61, 390,949.92 and 204,629.70

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Solution

The fourth proportional to 260,960.61, 390,949.92 and 204,629.70 is: 306,559.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,960.61 : 390,949.92 = 204,629.70 : x
  2. Step 2: Convert to fraction form
    260,960.61/390,949.92 = 204,629.70/x
  3. Step 3: Cross multiply
    260,960.61x = 390,949.92 × 204,629.70
  4. Step 4: Simplify right side
    260,960.61x = 79,999,964,844.62
  5. Step 5: Solve for x
    x = 79,999,964,844.62/260,960.61
  6. Step 6: Final answer
    x = 306,559.54

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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.