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Finding the Fourth Proportional to 206,764.79, 310,190.23 and 64,604.32

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Solution

The fourth proportional to 206,764.79, 310,190.23 and 64,604.32 is: 96,919.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,764.79 : 310,190.23 = 64,604.32 : x
  2. Step 2: Convert to fraction form
    206,764.79/310,190.23 = 64,604.32/x
  3. Step 3: Cross multiply
    206,764.79x = 310,190.23 × 64,604.32
  4. Step 4: Simplify right side
    206,764.79x = 20,039,628,556.77
  5. Step 5: Solve for x
    x = 20,039,628,556.77/206,764.79
  6. Step 6: Final answer
    x = 96,919.93

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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.