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Finding the Fourth Proportional to 300,739.32, 451,108.16 and 134,410.68

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Solution

The fourth proportional to 300,739.32, 451,108.16 and 134,410.68 is: 201,615.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,739.32 : 451,108.16 = 134,410.68 : x
  2. Step 2: Convert to fraction form
    300,739.32/451,108.16 = 134,410.68/x
  3. Step 3: Cross multiply
    300,739.32x = 451,108.16 × 134,410.68
  4. Step 4: Simplify right side
    300,739.32x = 60,633,754,539.15
  5. Step 5: Solve for x
    x = 60,633,754,539.15/300,739.32
  6. Step 6: Final answer
    x = 201,615.65

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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.