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Finding the Fourth Proportional to 300,633.80, 450,950.57 and 120,719.16

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Solution

The fourth proportional to 300,633.80, 450,950.57 and 120,719.16 is: 181,078.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,633.80 : 450,950.57 = 120,719.16 : x
  2. Step 2: Convert to fraction form
    300,633.80/450,950.57 = 120,719.16/x
  3. Step 3: Cross multiply
    300,633.80x = 450,950.57 × 120,719.16
  4. Step 4: Simplify right side
    300,633.80x = 54,438,373,408.33
  5. Step 5: Solve for x
    x = 54,438,373,408.33/300,633.80
  6. Step 6: Final answer
    x = 181,078.69

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1.5x scale

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.