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Finding the Fourth Proportional to 207,380.60, 310,682.10 and 193,383.80

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Solution

The fourth proportional to 207,380.60, 310,682.10 and 193,383.80 is: 289,713.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,380.60 : 310,682.10 = 193,383.80 : x
  2. Step 2: Convert to fraction form
    207,380.60/310,682.10 = 193,383.80/x
  3. Step 3: Cross multiply
    207,380.60x = 310,682.10 × 193,383.80
  4. Step 4: Simplify right side
    207,380.60x = 60,080,885,089.98
  5. Step 5: Solve for x
    x = 60,080,885,089.98/207,380.60
  6. Step 6: Final answer
    x = 289,713.14

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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.