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Finding the Fourth Proportional to 323,793.60, 485,690.40 and 181,492.80

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Solution

The fourth proportional to 323,793.60, 485,690.40 and 181,492.80 is: 272,239.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,793.60 : 485,690.40 = 181,492.80 : x
  2. Step 2: Convert to fraction form
    323,793.60/485,690.40 = 181,492.80/x
  3. Step 3: Cross multiply
    323,793.60x = 485,690.40 × 181,492.80
  4. Step 4: Simplify right side
    323,793.60x = 88,149,310,629.12
  5. Step 5: Solve for x
    x = 88,149,310,629.12/323,793.60
  6. Step 6: Final answer
    x = 272,239.20

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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.