Home / 231,620.96-347,491.34-135,639.22

Finding the Fourth Proportional to 231,620.96, 347,491.34 and 135,639.22

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Solution

The fourth proportional to 231,620.96, 347,491.34 and 135,639.22 is: 203,493.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,620.96 : 347,491.34 = 135,639.22 : x
  2. Step 2: Convert to fraction form
    231,620.96/347,491.34 = 135,639.22/x
  3. Step 3: Cross multiply
    231,620.96x = 347,491.34 × 135,639.22
  4. Step 4: Simplify right side
    231,620.96x = 47,133,454,314.35
  5. Step 5: Solve for x
    x = 47,133,454,314.35/231,620.96
  6. Step 6: Final answer
    x = 203,493.91

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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.