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Finding the Fourth Proportional to 300,731.46, 451,149.30 and 101,071.32

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Solution

The fourth proportional to 300,731.46, 451,149.30 and 101,071.32 is: 151,624.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,731.46 : 451,149.30 = 101,071.32 : x
  2. Step 2: Convert to fraction form
    300,731.46/451,149.30 = 101,071.32/x
  3. Step 3: Cross multiply
    300,731.46x = 451,149.30 × 101,071.32
  4. Step 4: Simplify right side
    300,731.46x = 45,598,255,268.08
  5. Step 5: Solve for x
    x = 45,598,255,268.08/300,731.46
  6. Step 6: Final answer
    x = 151,624.49

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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.