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Finding the Fourth Proportional to 288,245.79, 397,797.62 and 160,921.35

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Solution

The fourth proportional to 288,245.79, 397,797.62 and 160,921.35 is: 222,081.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,245.79 : 397,797.62 = 160,921.35 : x
  2. Step 2: Convert to fraction form
    288,245.79/397,797.62 = 160,921.35/x
  3. Step 3: Cross multiply
    288,245.79x = 397,797.62 × 160,921.35
  4. Step 4: Simplify right side
    288,245.79x = 64,014,129,232.58
  5. Step 5: Solve for x
    x = 64,014,129,232.58/288,245.79
  6. Step 6: Final answer
    x = 222,081.75

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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.