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Finding the Fourth Proportional to 663,653.20, 995,625.60 and 214,297.60

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Solution

The fourth proportional to 663,653.20, 995,625.60 and 214,297.60 is: 321,493.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,653.20 : 995,625.60 = 214,297.60 : x
  2. Step 2: Convert to fraction form
    663,653.20/995,625.60 = 214,297.60/x
  3. Step 3: Cross multiply
    663,653.20x = 995,625.60 × 214,297.60
  4. Step 4: Simplify right side
    663,653.20x = 213,360,176,578.56
  5. Step 5: Solve for x
    x = 213,360,176,578.56/663,653.20
  6. Step 6: Final answer
    x = 321,493.48

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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.