Home / 543,743.30-815,906.55-228,232.10

Finding the Fourth Proportional to 543,743.30, 815,906.55 and 228,232.10

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Solution

The fourth proportional to 543,743.30, 815,906.55 and 228,232.10 is: 342,470.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,743.30 : 815,906.55 = 228,232.10 : x
  2. Step 2: Convert to fraction form
    543,743.30/815,906.55 = 228,232.10/x
  3. Step 3: Cross multiply
    543,743.30x = 815,906.55 × 228,232.10
  4. Step 4: Simplify right side
    543,743.30x = 186,216,065,310.26
  5. Step 5: Solve for x
    x = 186,216,065,310.26/543,743.30
  6. Step 6: Final answer
    x = 342,470.55

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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.