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Finding the Fourth Proportional to 215,550.20, 323,325.30 and 161,895.80

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Solution

The fourth proportional to 215,550.20, 323,325.30 and 161,895.80 is: 242,843.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,550.20 : 323,325.30 = 161,895.80 : x
  2. Step 2: Convert to fraction form
    215,550.20/323,325.30 = 161,895.80/x
  3. Step 3: Cross multiply
    215,550.20x = 323,325.30 × 161,895.80
  4. Step 4: Simplify right side
    215,550.20x = 52,345,008,103.74
  5. Step 5: Solve for x
    x = 52,345,008,103.74/215,550.20
  6. Step 6: Final answer
    x = 242,843.70

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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.