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Finding the Fourth Proportional to 344,728.88, 516,786.24 and 134,318.96

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Solution

The fourth proportional to 344,728.88, 516,786.24 and 134,318.96 is: 201,358.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,728.88 : 516,786.24 = 134,318.96 : x
  2. Step 2: Convert to fraction form
    344,728.88/516,786.24 = 134,318.96/x
  3. Step 3: Cross multiply
    344,728.88x = 516,786.24 × 134,318.96
  4. Step 4: Simplify right side
    344,728.88x = 69,414,190,299.11
  5. Step 5: Solve for x
    x = 69,414,190,299.11/344,728.88
  6. Step 6: Final answer
    x = 201,358.79

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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.