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Finding the Fourth Proportional to 300,774.30, 415,040.93 and 173,425.29

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Solution

The fourth proportional to 300,774.30, 415,040.93 and 173,425.29 is: 239,310.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,774.30 : 415,040.93 = 173,425.29 : x
  2. Step 2: Convert to fraction form
    300,774.30/415,040.93 = 173,425.29/x
  3. Step 3: Cross multiply
    300,774.30x = 415,040.93 × 173,425.29
  4. Step 4: Simplify right side
    300,774.30x = 71,978,593,647.12
  5. Step 5: Solve for x
    x = 71,978,593,647.12/300,774.30
  6. Step 6: Final answer
    x = 239,310.98

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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.