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Finding the Fourth Proportional to 288,218.16, 397,781.04 and 160,902

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Solution

The fourth proportional to 288,218.16, 397,781.04 and 160,902 is: 222,067.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,218.16 : 397,781.04 = 160,902 : x
  2. Step 2: Convert to fraction form
    288,218.16/397,781.04 = 160,902/x
  3. Step 3: Cross multiply
    288,218.16x = 397,781.04 × 160,902
  4. Step 4: Simplify right side
    288,218.16x = 64,003,764,898.08
  5. Step 5: Solve for x
    x = 64,003,764,898.08/288,218.16
  6. Step 6: Final answer
    x = 222,067.08

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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.