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Finding the Fourth Proportional to 663,213.31, 995,013.68 and 213,924.23

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Solution

The fourth proportional to 663,213.31, 995,013.68 and 213,924.23 is: 320,948.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,213.31 : 995,013.68 = 213,924.23 : x
  2. Step 2: Convert to fraction form
    663,213.31/995,013.68 = 213,924.23/x
  3. Step 3: Cross multiply
    663,213.31x = 995,013.68 × 213,924.23
  4. Step 4: Simplify right side
    663,213.31x = 212,857,535,333.47
  5. Step 5: Solve for x
    x = 212,857,535,333.47/663,213.31
  6. Step 6: Final answer
    x = 320,948.83

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1.5x scale

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.