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Finding the Fourth Proportional to 323,935.95, 485,997.25 and 99,329.47

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Solution

The fourth proportional to 323,935.95, 485,997.25 and 99,329.47 is: 149,022.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,935.95 : 485,997.25 = 99,329.47 : x
  2. Step 2: Convert to fraction form
    323,935.95/485,997.25 = 99,329.47/x
  3. Step 3: Cross multiply
    323,935.95x = 485,997.25 × 99,329.47
  4. Step 4: Simplify right side
    323,935.95x = 48,273,847,800.64
  5. Step 5: Solve for x
    x = 48,273,847,800.64/323,935.95
  6. Step 6: Final answer
    x = 149,022.82

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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.