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Finding the Fourth Proportional to 291,634.56, 437,495.40 and 91,933.92

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Solution

The fourth proportional to 291,634.56, 437,495.40 and 91,933.92 is: 137,914.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,634.56 : 437,495.40 = 91,933.92 : x
  2. Step 2: Convert to fraction form
    291,634.56/437,495.40 = 91,933.92/x
  3. Step 3: Cross multiply
    291,634.56x = 437,495.40 × 91,933.92
  4. Step 4: Simplify right side
    291,634.56x = 40,220,667,103.97
  5. Step 5: Solve for x
    x = 40,220,667,103.97/291,634.56
  6. Step 6: Final answer
    x = 137,914.61

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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.