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Finding the Fourth Proportional to 329,839.83, 494,758.53 and 119,428.56

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Solution

The fourth proportional to 329,839.83, 494,758.53 and 119,428.56 is: 179,142.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,839.83 : 494,758.53 = 119,428.56 : x
  2. Step 2: Convert to fraction form
    329,839.83/494,758.53 = 119,428.56/x
  3. Step 3: Cross multiply
    329,839.83x = 494,758.53 × 119,428.56
  4. Step 4: Simplify right side
    329,839.83x = 59,088,298,785.62
  5. Step 5: Solve for x
    x = 59,088,298,785.62/329,839.83
  6. Step 6: Final answer
    x = 179,142.40

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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.