Home / 663,212.31-995,012.18-213,923.23

Finding the Fourth Proportional to 663,212.31, 995,012.18 and 213,923.23

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Solution

The fourth proportional to 663,212.31, 995,012.18 and 213,923.23 is: 320,947.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,212.31 : 995,012.18 = 213,923.23 : x
  2. Step 2: Convert to fraction form
    663,212.31/995,012.18 = 213,923.23/x
  3. Step 3: Cross multiply
    663,212.31x = 995,012.18 × 213,923.23
  4. Step 4: Simplify right side
    663,212.31x = 212,856,217,883.33
  5. Step 5: Solve for x
    x = 212,856,217,883.33/663,212.31
  6. Step 6: Final answer
    x = 320,947.33

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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.