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Finding the Fourth Proportional to 300,633.73, 450,934.80 and 100,958.20

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Solution

The fourth proportional to 300,633.73, 450,934.80 and 100,958.20 is: 151,431.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,633.73 : 450,934.80 = 100,958.20 : x
  2. Step 2: Convert to fraction form
    300,633.73/450,934.80 = 100,958.20/x
  3. Step 3: Cross multiply
    300,633.73x = 450,934.80 × 100,958.20
  4. Step 4: Simplify right side
    300,633.73x = 45,525,564,219.43
  5. Step 5: Solve for x
    x = 45,525,564,219.43/300,633.73
  6. Step 6: Final answer
    x = 151,431.99

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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.