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Finding the Fourth Proportional to 311,896.44, 467,761.62 and 87,242.94

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Solution

The fourth proportional to 311,896.44, 467,761.62 and 87,242.94 is: 130,841.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,896.44 : 467,761.62 = 87,242.94 : x
  2. Step 2: Convert to fraction form
    311,896.44/467,761.62 = 87,242.94/x
  3. Step 3: Cross multiply
    311,896.44x = 467,761.62 × 87,242.94
  4. Step 4: Simplify right side
    311,896.44x = 40,808,898,947.96
  5. Step 5: Solve for x
    x = 40,808,898,947.96/311,896.44
  6. Step 6: Final answer
    x = 130,841.18

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1.5x scale

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.