Home / 663,231.90-995,041.58-213,942.80

Finding the Fourth Proportional to 663,231.90, 995,041.58 and 213,942.80

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Solution

The fourth proportional to 663,231.90, 995,041.58 and 213,942.80 is: 320,976.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,231.90 : 995,041.58 = 213,942.80 : x
  2. Step 2: Convert to fraction form
    663,231.90/995,041.58 = 213,942.80/x
  3. Step 3: Cross multiply
    663,231.90x = 995,041.58 × 213,942.80
  4. Step 4: Simplify right side
    663,231.90x = 212,881,975,696.70
  5. Step 5: Solve for x
    x = 212,881,975,696.70/663,231.90
  6. Step 6: Final answer
    x = 320,976.68

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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.