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Finding the Fourth Proportional to 300,809.14, 451,214.72 and 76,169.47

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Solution

The fourth proportional to 300,809.14, 451,214.72 and 76,169.47 is: 114,254.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,809.14 : 451,214.72 = 76,169.47 : x
  2. Step 2: Convert to fraction form
    300,809.14/451,214.72 = 76,169.47/x
  3. Step 3: Cross multiply
    300,809.14x = 451,214.72 × 76,169.47
  4. Step 4: Simplify right side
    300,809.14x = 34,368,783,822.52
  5. Step 5: Solve for x
    x = 34,368,783,822.52/300,809.14
  6. Step 6: Final answer
    x = 114,254.46

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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.