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Finding the Fourth Proportional to 147,479, 221,219.36 and 36,671

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Solution

The fourth proportional to 147,479, 221,219.36 and 36,671 is: 55,006.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,479 : 221,219.36 = 36,671 : x
  2. Step 2: Convert to fraction form
    147,479/221,219.36 = 36,671/x
  3. Step 3: Cross multiply
    147,479x = 221,219.36 × 36,671
  4. Step 4: Simplify right side
    147,479x = 8,112,335,150.56
  5. Step 5: Solve for x
    x = 8,112,335,150.56/147,479
  6. Step 6: Final answer
    x = 55,006.71

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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.