Home / 231,975.20-347,962.80-82,214.30

Finding the Fourth Proportional to 231,975.20, 347,962.80 and 82,214.30

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Solution

The fourth proportional to 231,975.20, 347,962.80 and 82,214.30 is: 123,321.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,975.20 : 347,962.80 = 82,214.30 : x
  2. Step 2: Convert to fraction form
    231,975.20/347,962.80 = 82,214.30/x
  3. Step 3: Cross multiply
    231,975.20x = 347,962.80 × 82,214.30
  4. Step 4: Simplify right side
    231,975.20x = 28,607,518,028.04
  5. Step 5: Solve for x
    x = 28,607,518,028.04/231,975.20
  6. Step 6: Final answer
    x = 123,321.45

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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.