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Finding the Fourth Proportional to 188,015.28, 282,018.96 and 45,861

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Solution

The fourth proportional to 188,015.28, 282,018.96 and 45,861 is: 68,790.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,015.28 : 282,018.96 = 45,861 : x
  2. Step 2: Convert to fraction form
    188,015.28/282,018.96 = 45,861/x
  3. Step 3: Cross multiply
    188,015.28x = 282,018.96 × 45,861
  4. Step 4: Simplify right side
    188,015.28x = 12,933,671,524.56
  5. Step 5: Solve for x
    x = 12,933,671,524.56/188,015.28
  6. Step 6: Final answer
    x = 68,790.53

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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.