Home / 231,991.31-347,945.24-105,602.15

Finding the Fourth Proportional to 231,991.31, 347,945.24 and 105,602.15

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Solution

The fourth proportional to 231,991.31, 347,945.24 and 105,602.15 is: 158,384.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,991.31 : 347,945.24 = 105,602.15 : x
  2. Step 2: Convert to fraction form
    231,991.31/347,945.24 = 105,602.15/x
  3. Step 3: Cross multiply
    231,991.31x = 347,945.24 × 105,602.15
  4. Step 4: Simplify right side
    231,991.31x = 36,743,763,158.53
  5. Step 5: Solve for x
    x = 36,743,763,158.53/231,991.31
  6. Step 6: Final answer
    x = 158,384.23

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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.