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Finding the Fourth Proportional to 206,540.60, 310,041.30 and 193,004.60

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Solution

The fourth proportional to 206,540.60, 310,041.30 and 193,004.60 is: 289,722.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,540.60 : 310,041.30 = 193,004.60 : x
  2. Step 2: Convert to fraction form
    206,540.60/310,041.30 = 193,004.60/x
  3. Step 3: Cross multiply
    206,540.60x = 310,041.30 × 193,004.60
  4. Step 4: Simplify right side
    206,540.60x = 59,839,397,089.98
  5. Step 5: Solve for x
    x = 59,839,397,089.98/206,540.60
  6. Step 6: Final answer
    x = 289,722.20

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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.