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Finding the Fourth Proportional to 206,728.39, 310,314.02 and 162,663.07

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Solution

The fourth proportional to 206,728.39, 310,314.02 and 162,663.07 is: 244,168.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,728.39 : 310,314.02 = 162,663.07 : x
  2. Step 2: Convert to fraction form
    206,728.39/310,314.02 = 162,663.07/x
  3. Step 3: Cross multiply
    206,728.39x = 310,314.02 × 162,663.07
  4. Step 4: Simplify right side
    206,728.39x = 50,476,631,157.24
  5. Step 5: Solve for x
    x = 50,476,631,157.24/206,728.39
  6. Step 6: Final answer
    x = 244,168.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.