Home / 329,790.32-494,349.41-140,129.75

Finding the Fourth Proportional to 329,790.32, 494,349.41 and 140,129.75

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Solution

The fourth proportional to 329,790.32, 494,349.41 and 140,129.75 is: 210,051.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,790.32 : 494,349.41 = 140,129.75 : x
  2. Step 2: Convert to fraction form
    329,790.32/494,349.41 = 140,129.75/x
  3. Step 3: Cross multiply
    329,790.32x = 494,349.41 × 140,129.75
  4. Step 4: Simplify right side
    329,790.32x = 69,273,059,753.37
  5. Step 5: Solve for x
    x = 69,273,059,753.37/329,790.32
  6. Step 6: Final answer
    x = 210,051.83

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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.