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Finding the Fourth Proportional to 323,477.66, 485,245.66 and 123,789.98

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Solution

The fourth proportional to 323,477.66, 485,245.66 and 123,789.98 is: 185,696.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,477.66 : 485,245.66 = 123,789.98 : x
  2. Step 2: Convert to fraction form
    323,477.66/485,245.66 = 123,789.98/x
  3. Step 3: Cross multiply
    323,477.66x = 485,245.66 × 123,789.98
  4. Step 4: Simplify right side
    323,477.66x = 60,068,550,546.49
  5. Step 5: Solve for x
    x = 60,068,550,546.49/323,477.66
  6. Step 6: Final answer
    x = 185,696.13

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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.