Home / 663,231.40-995,040.83-213,942.30

Finding the Fourth Proportional to 663,231.40, 995,040.83 and 213,942.30

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Solution

The fourth proportional to 663,231.40, 995,040.83 and 213,942.30 is: 320,975.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,231.40 : 995,040.83 = 213,942.30 : x
  2. Step 2: Convert to fraction form
    663,231.40/995,040.83 = 213,942.30/x
  3. Step 3: Cross multiply
    663,231.40x = 995,040.83 × 213,942.30
  4. Step 4: Simplify right side
    663,231.40x = 212,881,323,764.11
  5. Step 5: Solve for x
    x = 212,881,323,764.11/663,231.40
  6. Step 6: Final answer
    x = 320,975.94

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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.