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Finding the Fourth Proportional to 663,744.31, 995,622.22 and 214,465.22

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Solution

The fourth proportional to 663,744.31, 995,622.22 and 214,465.22 is: 321,699.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,744.31 : 995,622.22 = 214,465.22 : x
  2. Step 2: Convert to fraction form
    663,744.31/995,622.22 = 214,465.22/x
  3. Step 3: Cross multiply
    663,744.31x = 995,622.22 × 214,465.22
  4. Step 4: Simplify right side
    663,744.31x = 213,526,336,266.38
  5. Step 5: Solve for x
    x = 213,526,336,266.38/663,744.31
  6. Step 6: Final answer
    x = 321,699.69

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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.