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Finding the Fourth Proportional to 440,147.80, 660,221.70 and 229,850.20

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Solution

The fourth proportional to 440,147.80, 660,221.70 and 229,850.20 is: 344,775.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,147.80 : 660,221.70 = 229,850.20 : x
  2. Step 2: Convert to fraction form
    440,147.80/660,221.70 = 229,850.20/x
  3. Step 3: Cross multiply
    440,147.80x = 660,221.70 × 229,850.20
  4. Step 4: Simplify right side
    440,147.80x = 151,752,089,789.34
  5. Step 5: Solve for x
    x = 151,752,089,789.34/440,147.80
  6. Step 6: Final answer
    x = 344,775.30

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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.