Home / 445,336.68-667,653.66-220,774.44

Finding the Fourth Proportional to 445,336.68, 667,653.66 and 220,774.44

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Solution

The fourth proportional to 445,336.68, 667,653.66 and 220,774.44 is: 330,987.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,336.68 : 667,653.66 = 220,774.44 : x
  2. Step 2: Convert to fraction form
    445,336.68/667,653.66 = 220,774.44/x
  3. Step 3: Cross multiply
    445,336.68x = 667,653.66 × 220,774.44
  4. Step 4: Simplify right side
    445,336.68x = 147,400,862,900.45
  5. Step 5: Solve for x
    x = 147,400,862,900.45/445,336.68
  6. Step 6: Final answer
    x = 330,987.47

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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.