Home / 231,857.20-347,591.40-121,049.20

Finding the Fourth Proportional to 231,857.20, 347,591.40 and 121,049.20

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Solution

The fourth proportional to 231,857.20, 347,591.40 and 121,049.20 is: 181,472.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,857.20 : 347,591.40 = 121,049.20 : x
  2. Step 2: Convert to fraction form
    231,857.20/347,591.40 = 121,049.20/x
  3. Step 3: Cross multiply
    231,857.20x = 347,591.40 × 121,049.20
  4. Step 4: Simplify right side
    231,857.20x = 42,075,660,896.88
  5. Step 5: Solve for x
    x = 42,075,660,896.88/231,857.20
  6. Step 6: Final answer
    x = 181,472.31

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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.