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Finding the Fourth Proportional to 338,796.72, 507,517.44 and 203,786.22

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Solution

The fourth proportional to 338,796.72, 507,517.44 and 203,786.22 is: 305,271.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,796.72 : 507,517.44 = 203,786.22 : x
  2. Step 2: Convert to fraction form
    338,796.72/507,517.44 = 203,786.22/x
  3. Step 3: Cross multiply
    338,796.72x = 507,517.44 × 203,786.22
  4. Step 4: Simplify right side
    338,796.72x = 103,425,060,681.68
  5. Step 5: Solve for x
    x = 103,425,060,681.68/338,796.72
  6. Step 6: Final answer
    x = 305,271.73

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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.