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Finding the Fourth Proportional to 300,639.53, 451,000.71 and 101,016.95

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Solution

The fourth proportional to 300,639.53, 451,000.71 and 101,016.95 is: 151,539.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,639.53 : 451,000.71 = 101,016.95 : x
  2. Step 2: Convert to fraction form
    300,639.53/451,000.71 = 101,016.95/x
  3. Step 3: Cross multiply
    300,639.53x = 451,000.71 × 101,016.95
  4. Step 4: Simplify right side
    300,639.53x = 45,558,716,172.03
  5. Step 5: Solve for x
    x = 45,558,716,172.03/300,639.53
  6. Step 6: Final answer
    x = 151,539.34

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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.