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Finding the Fourth Proportional to 300,539.49, 450,765.09 and 113,507.25

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Solution

The fourth proportional to 300,539.49, 450,765.09 and 113,507.25 is: 170,244.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,539.49 : 450,765.09 = 113,507.25 : x
  2. Step 2: Convert to fraction form
    300,539.49/450,765.09 = 113,507.25/x
  3. Step 3: Cross multiply
    300,539.49x = 450,765.09 × 113,507.25
  4. Step 4: Simplify right side
    300,539.49x = 51,165,105,761.90
  5. Step 5: Solve for x
    x = 51,165,105,761.90/300,539.49
  6. Step 6: Final answer
    x = 170,244.20

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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.