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Finding the Fourth Proportional to 288,240.39, 397,770.75 and 160,914.87

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Solution

The fourth proportional to 288,240.39, 397,770.75 and 160,914.87 is: 222,061.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,240.39 : 397,770.75 = 160,914.87 : x
  2. Step 2: Convert to fraction form
    288,240.39/397,770.75 = 160,914.87/x
  3. Step 3: Cross multiply
    288,240.39x = 397,770.75 × 160,914.87
  4. Step 4: Simplify right side
    288,240.39x = 64,007,228,526.05
  5. Step 5: Solve for x
    x = 64,007,228,526.05/288,240.39
  6. Step 6: Final answer
    x = 222,061.97

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1.5x scale

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.