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Finding the Fourth Proportional to 275,327.06, 379,957.17 and 154,477.08

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Solution

The fourth proportional to 275,327.06, 379,957.17 and 154,477.08 is: 213,181.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,327.06 : 379,957.17 = 154,477.08 : x
  2. Step 2: Convert to fraction form
    275,327.06/379,957.17 = 154,477.08/x
  3. Step 3: Cross multiply
    275,327.06x = 379,957.17 × 154,477.08
  4. Step 4: Simplify right side
    275,327.06x = 58,694,674,146.66
  5. Step 5: Solve for x
    x = 58,694,674,146.66/275,327.06
  6. Step 6: Final answer
    x = 213,181.64

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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.