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Finding the Fourth Proportional to 275,520.80, 412,492.80 and 169,626.80

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Solution

The fourth proportional to 275,520.80, 412,492.80 and 169,626.80 is: 253,954.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,520.80 : 412,492.80 = 169,626.80 : x
  2. Step 2: Convert to fraction form
    275,520.80/412,492.80 = 169,626.80/x
  3. Step 3: Cross multiply
    275,520.80x = 412,492.80 × 169,626.80
  4. Step 4: Simplify right side
    275,520.80x = 69,969,833,687.04
  5. Step 5: Solve for x
    x = 69,969,833,687.04/275,520.80
  6. Step 6: Final answer
    x = 253,954.81

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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.