Home / 300,667.72-451,022.64-120,753.16

Finding the Fourth Proportional to 300,667.72, 451,022.64 and 120,753.16

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Solution

The fourth proportional to 300,667.72, 451,022.64 and 120,753.16 is: 181,138.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,667.72 : 451,022.64 = 120,753.16 : x
  2. Step 2: Convert to fraction form
    300,667.72/451,022.64 = 120,753.16/x
  3. Step 3: Cross multiply
    300,667.72x = 451,022.64 × 120,753.16
  4. Step 4: Simplify right side
    300,667.72x = 54,462,409,011.54
  5. Step 5: Solve for x
    x = 54,462,409,011.54/300,667.72
  6. Step 6: Final answer
    x = 181,138.20

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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.