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Finding the Fourth Proportional to 323,564.60, 485,201.10 and 123,818.60

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Solution

The fourth proportional to 323,564.60, 485,201.10 and 123,818.60 is: 185,672.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,564.60 : 485,201.10 = 123,818.60 : x
  2. Step 2: Convert to fraction form
    323,564.60/485,201.10 = 123,818.60/x
  3. Step 3: Cross multiply
    323,564.60x = 485,201.10 × 123,818.60
  4. Step 4: Simplify right side
    323,564.60x = 60,076,920,920.46
  5. Step 5: Solve for x
    x = 60,076,920,920.46/323,564.60
  6. Step 6: Final answer
    x = 185,672.11

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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.