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Finding the Fourth Proportional to 300,658.46, 450,971.85 and 100,982.93

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Solution

The fourth proportional to 300,658.46, 450,971.85 and 100,982.93 is: 151,469.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,658.46 : 450,971.85 = 100,982.93 : x
  2. Step 2: Convert to fraction form
    300,658.46/450,971.85 = 100,982.93/x
  3. Step 3: Cross multiply
    300,658.46x = 450,971.85 × 100,982.93
  4. Step 4: Simplify right side
    300,658.46x = 45,540,458,760.52
  5. Step 5: Solve for x
    x = 45,540,458,760.52/300,658.46
  6. Step 6: Final answer
    x = 151,469.07

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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.