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Finding the Fourth Proportional to 300,689.46, 451,086.30 and 101,029.32

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Solution

The fourth proportional to 300,689.46, 451,086.30 and 101,029.32 is: 151,561.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,689.46 : 451,086.30 = 101,029.32 : x
  2. Step 2: Convert to fraction form
    300,689.46/451,086.30 = 101,029.32/x
  3. Step 3: Cross multiply
    300,689.46x = 451,086.30 × 101,029.32
  4. Step 4: Simplify right side
    300,689.46x = 45,572,942,150.32
  5. Step 5: Solve for x
    x = 45,572,942,150.32/300,689.46
  6. Step 6: Final answer
    x = 151,561.49

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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.