Home / 231,973.70-347,960.55-82,212.80

Finding the Fourth Proportional to 231,973.70, 347,960.55 and 82,212.80

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Solution

The fourth proportional to 231,973.70, 347,960.55 and 82,212.80 is: 123,319.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,973.70 : 347,960.55 = 82,212.80 : x
  2. Step 2: Convert to fraction form
    231,973.70/347,960.55 = 82,212.80/x
  3. Step 3: Cross multiply
    231,973.70x = 347,960.55 × 82,212.80
  4. Step 4: Simplify right side
    231,973.70x = 28,606,811,105.04
  5. Step 5: Solve for x
    x = 28,606,811,105.04/231,973.70
  6. Step 6: Final answer
    x = 123,319.20

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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.