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Finding the Fourth Proportional to 300,810.70, 451,272.96 and 120,910.14

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Solution

The fourth proportional to 300,810.70, 451,272.96 and 120,910.14 is: 181,388.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,810.70 : 451,272.96 = 120,910.14 : x
  2. Step 2: Convert to fraction form
    300,810.70/451,272.96 = 120,910.14/x
  3. Step 3: Cross multiply
    300,810.70x = 451,272.96 × 120,910.14
  4. Step 4: Simplify right side
    300,810.70x = 54,563,476,771.81
  5. Step 5: Solve for x
    x = 54,563,476,771.81/300,810.70
  6. Step 6: Final answer
    x = 181,388.08

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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.