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Finding the Fourth Proportional to 300,690.02, 450,555.25 and 220,355.69

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Solution

The fourth proportional to 300,690.02, 450,555.25 and 220,355.69 is: 330,181.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,690.02 : 450,555.25 = 220,355.69 : x
  2. Step 2: Convert to fraction form
    300,690.02/450,555.25 = 220,355.69/x
  3. Step 3: Cross multiply
    300,690.02x = 450,555.25 × 220,355.69
  4. Step 4: Simplify right side
    300,690.02x = 99,282,413,572.37
  5. Step 5: Solve for x
    x = 99,282,413,572.37/300,690.02
  6. Step 6: Final answer
    x = 330,181.94

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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.