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Finding the Fourth Proportional to 180,640.20, 271,113.90 and 80,953.80

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Solution

The fourth proportional to 180,640.20, 271,113.90 and 80,953.80 is: 121,499.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,640.20 : 271,113.90 = 80,953.80 : x
  2. Step 2: Convert to fraction form
    180,640.20/271,113.90 = 80,953.80/x
  3. Step 3: Cross multiply
    180,640.20x = 271,113.90 × 80,953.80
  4. Step 4: Simplify right side
    180,640.20x = 21,947,700,437.82
  5. Step 5: Solve for x
    x = 21,947,700,437.82/180,640.20
  6. Step 6: Final answer
    x = 121,499.54

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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.