Home / 663,230.40-995,039.33-213,941.30

Finding the Fourth Proportional to 663,230.40, 995,039.33 and 213,941.30

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Solution

The fourth proportional to 663,230.40, 995,039.33 and 213,941.30 is: 320,974.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,230.40 : 995,039.33 = 213,941.30 : x
  2. Step 2: Convert to fraction form
    663,230.40/995,039.33 = 213,941.30/x
  3. Step 3: Cross multiply
    663,230.40x = 995,039.33 × 213,941.30
  4. Step 4: Simplify right side
    663,230.40x = 212,880,001,766.43
  5. Step 5: Solve for x
    x = 212,880,001,766.43/663,230.40
  6. Step 6: Final answer
    x = 320,974.43

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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.