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Finding the Fourth Proportional to 316,481.46, 436,748.58 and 173,238.42

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Solution

The fourth proportional to 316,481.46, 436,748.58 and 173,238.42 is: 239,071.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,481.46 : 436,748.58 = 173,238.42 : x
  2. Step 2: Convert to fraction form
    316,481.46/436,748.58 = 173,238.42/x
  3. Step 3: Cross multiply
    316,481.46x = 436,748.58 × 173,238.42
  4. Step 4: Simplify right side
    316,481.46x = 75,661,633,936.44
  5. Step 5: Solve for x
    x = 75,661,633,936.44/316,481.46
  6. Step 6: Final answer
    x = 239,071.30

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