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Finding the Fourth Proportional to 323,530.20, 485,295.30 and 181,812.60

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Solution

The fourth proportional to 323,530.20, 485,295.30 and 181,812.60 is: 272,718.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,530.20 : 485,295.30 = 181,812.60 : x
  2. Step 2: Convert to fraction form
    323,530.20/485,295.30 = 181,812.60/x
  3. Step 3: Cross multiply
    323,530.20x = 485,295.30 × 181,812.60
  4. Step 4: Simplify right side
    323,530.20x = 88,232,800,260.78
  5. Step 5: Solve for x
    x = 88,232,800,260.78/323,530.20
  6. Step 6: Final answer
    x = 272,718.90

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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.