Home / 231,905.52-347,907.94-71,978.11

Finding the Fourth Proportional to 231,905.52, 347,907.94 and 71,978.11

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Solution

The fourth proportional to 231,905.52, 347,907.94 and 71,978.11 is: 107,982.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,905.52 : 347,907.94 = 71,978.11 : x
  2. Step 2: Convert to fraction form
    231,905.52/347,907.94 = 71,978.11/x
  3. Step 3: Cross multiply
    231,905.52x = 347,907.94 × 71,978.11
  4. Step 4: Simplify right side
    231,905.52x = 25,041,755,975.19
  5. Step 5: Solve for x
    x = 25,041,755,975.19/231,905.52
  6. Step 6: Final answer
    x = 107,982.58

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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.