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Finding the Fourth Proportional to 303,490.73, 418,815.16 and 165,669.10

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Solution

The fourth proportional to 303,490.73, 418,815.16 and 165,669.10 is: 228,622.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,490.73 : 418,815.16 = 165,669.10 : x
  2. Step 2: Convert to fraction form
    303,490.73/418,815.16 = 165,669.10/x
  3. Step 3: Cross multiply
    303,490.73x = 418,815.16 × 165,669.10
  4. Step 4: Simplify right side
    303,490.73x = 69,384,729,162.35
  5. Step 5: Solve for x
    x = 69,384,729,162.35/303,490.73
  6. Step 6: Final answer
    x = 228,622.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.