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Finding the Fourth Proportional to 349,191, 481,883.58 and 198,288

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Solution

The fourth proportional to 349,191, 481,883.58 and 198,288 is: 273,637.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,191 : 481,883.58 = 198,288 : x
  2. Step 2: Convert to fraction form
    349,191/481,883.58 = 198,288/x
  3. Step 3: Cross multiply
    349,191x = 481,883.58 × 198,288
  4. Step 4: Simplify right side
    349,191x = 95,551,731,311.04
  5. Step 5: Solve for x
    x = 95,551,731,311.04/349,191
  6. Step 6: Final answer
    x = 273,637.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.