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Finding the Fourth Proportional to 323,187.95, 485,003.35 and 112,825.88

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Solution

The fourth proportional to 323,187.95, 485,003.35 and 112,825.88 is: 169,316.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,187.95 : 485,003.35 = 112,825.88 : x
  2. Step 2: Convert to fraction form
    323,187.95/485,003.35 = 112,825.88/x
  3. Step 3: Cross multiply
    323,187.95x = 485,003.35 × 112,825.88
  4. Step 4: Simplify right side
    323,187.95x = 54,720,929,766.70
  5. Step 5: Solve for x
    x = 54,720,929,766.70/323,187.95
  6. Step 6: Final answer
    x = 169,316.12

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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.