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Finding the Fourth Proportional to 300,693.11, 450,559.89 and 220,358.80

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Solution

The fourth proportional to 300,693.11, 450,559.89 and 220,358.80 is: 330,186.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,693.11 : 450,559.89 = 220,358.80 : x
  2. Step 2: Convert to fraction form
    300,693.11/450,559.89 = 220,358.80/x
  3. Step 3: Cross multiply
    300,693.11x = 450,559.89 × 220,358.80
  4. Step 4: Simplify right side
    300,693.11x = 99,284,835,562.13
  5. Step 5: Solve for x
    x = 99,284,835,562.13/300,693.11
  6. Step 6: Final answer
    x = 330,186.60

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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.