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Finding the Fourth Proportional to 327,246.30, 490,869.45 and 105,630.30

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Solution

The fourth proportional to 327,246.30, 490,869.45 and 105,630.30 is: 158,445.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,246.30 : 490,869.45 = 105,630.30 : x
  2. Step 2: Convert to fraction form
    327,246.30/490,869.45 = 105,630.30/x
  3. Step 3: Cross multiply
    327,246.30x = 490,869.45 × 105,630.30
  4. Step 4: Simplify right side
    327,246.30x = 51,850,687,264.34
  5. Step 5: Solve for x
    x = 51,850,687,264.34/327,246.30
  6. Step 6: Final answer
    x = 158,445.45

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.