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Finding the Fourth Proportional to 291,380.62, 437,133.46 and 165,081.37

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Solution

The fourth proportional to 291,380.62, 437,133.46 and 165,081.37 is: 247,657.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,380.62 : 437,133.46 = 165,081.37 : x
  2. Step 2: Convert to fraction form
    291,380.62/437,133.46 = 165,081.37/x
  3. Step 3: Cross multiply
    291,380.62x = 437,133.46 × 165,081.37
  4. Step 4: Simplify right side
    291,380.62x = 72,162,588,843.82
  5. Step 5: Solve for x
    x = 72,162,588,843.82/291,380.62
  6. Step 6: Final answer
    x = 247,657.48

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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.