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Finding the Fourth Proportional to 300,693.27, 450,560.12 and 220,358.94

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Solution

The fourth proportional to 300,693.27, 450,560.12 and 220,358.94 is: 330,186.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,693.27 : 450,560.12 = 220,358.94 : x
  2. Step 2: Convert to fraction form
    300,693.27/450,560.12 = 220,358.94/x
  3. Step 3: Cross multiply
    300,693.27x = 450,560.12 × 220,358.94
  4. Step 4: Simplify right side
    300,693.27x = 99,284,950,449.47
  5. Step 5: Solve for x
    x = 99,284,950,449.47/300,693.27
  6. Step 6: Final answer
    x = 330,186.81

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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.