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Finding the Fourth Proportional to 288,376.08, 397,954.80 and 161,053.44

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Solution

The fourth proportional to 288,376.08, 397,954.80 and 161,053.44 is: 222,251.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,376.08 : 397,954.80 = 161,053.44 : x
  2. Step 2: Convert to fraction form
    288,376.08/397,954.80 = 161,053.44/x
  3. Step 3: Cross multiply
    288,376.08x = 397,954.80 × 161,053.44
  4. Step 4: Simplify right side
    288,376.08x = 64,091,989,504.51
  5. Step 5: Solve for x
    x = 64,091,989,504.51/288,376.08
  6. Step 6: Final answer
    x = 222,251.41

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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.