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Finding the Fourth Proportional to 245,435.63, 338,797.62 and 154,773.54

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Solution

The fourth proportional to 245,435.63, 338,797.62 and 154,773.54 is: 213,648.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,435.63 : 338,797.62 = 154,773.54 : x
  2. Step 2: Convert to fraction form
    245,435.63/338,797.62 = 154,773.54/x
  3. Step 3: Cross multiply
    245,435.63x = 338,797.62 × 154,773.54
  4. Step 4: Simplify right side
    245,435.63x = 52,436,906,990.97
  5. Step 5: Solve for x
    x = 52,436,906,990.97/245,435.63
  6. Step 6: Final answer
    x = 213,648.31

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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.