Home / 300,814.20-414,968.40-203,985.32

Finding the Fourth Proportional to 300,814.20, 414,968.40 and 203,985.32

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Solution

The fourth proportional to 300,814.20, 414,968.40 and 203,985.32 is: 281,394.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,814.20 : 414,968.40 = 203,985.32 : x
  2. Step 2: Convert to fraction form
    300,814.20/414,968.40 = 203,985.32/x
  3. Step 3: Cross multiply
    300,814.20x = 414,968.40 × 203,985.32
  4. Step 4: Simplify right side
    300,814.20x = 84,647,459,789.05
  5. Step 5: Solve for x
    x = 84,647,459,789.05/300,814.20
  6. Step 6: Final answer
    x = 281,394.49

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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.