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Finding the Fourth Proportional to 300,690.77, 450,556.37 and 220,356.44

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Solution

The fourth proportional to 300,690.77, 450,556.37 and 220,356.44 is: 330,183.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,690.77 : 450,556.37 = 220,356.44 : x
  2. Step 2: Convert to fraction form
    300,690.77/450,556.37 = 220,356.44/x
  3. Step 3: Cross multiply
    300,690.77x = 450,556.37 × 220,356.44
  4. Step 4: Simplify right side
    300,690.77x = 99,282,999,389.80
  5. Step 5: Solve for x
    x = 99,282,999,389.80/300,690.77
  6. Step 6: Final answer
    x = 330,183.07

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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.