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Finding the Fourth Proportional to 300,888, 451,359.36 and 79,272

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Solution

The fourth proportional to 300,888, 451,359.36 and 79,272 is: 118,915.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,888 : 451,359.36 = 79,272 : x
  2. Step 2: Convert to fraction form
    300,888/451,359.36 = 79,272/x
  3. Step 3: Cross multiply
    300,888x = 451,359.36 × 79,272
  4. Step 4: Simplify right side
    300,888x = 35,780,159,185.92
  5. Step 5: Solve for x
    x = 35,780,159,185.92/300,888
  6. Step 6: Final answer
    x = 118,915.21

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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.