Home / 300,918.21-451,269.54-140,966.76

Finding the Fourth Proportional to 300,918.21, 451,269.54 and 140,966.76

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Solution

The fourth proportional to 300,918.21, 451,269.54 and 140,966.76 is: 211,399.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,918.21 : 451,269.54 = 140,966.76 : x
  2. Step 2: Convert to fraction form
    300,918.21/451,269.54 = 140,966.76/x
  3. Step 3: Cross multiply
    300,918.21x = 451,269.54 × 140,966.76
  4. Step 4: Simplify right side
    300,918.21x = 63,614,004,940.49
  5. Step 5: Solve for x
    x = 63,614,004,940.49/300,918.21
  6. Step 6: Final answer
    x = 211,399.65

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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.