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Finding the Fourth Proportional to 440,608.05, 660,912.08 and 230,310.45

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Solution

The fourth proportional to 440,608.05, 660,912.08 and 230,310.45 is: 345,465.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,608.05 : 660,912.08 = 230,310.45 : x
  2. Step 2: Convert to fraction form
    440,608.05/660,912.08 = 230,310.45/x
  3. Step 3: Cross multiply
    440,608.05x = 660,912.08 × 230,310.45
  4. Step 4: Simplify right side
    440,608.05x = 152,214,957,403.68
  5. Step 5: Solve for x
    x = 152,214,957,403.68/440,608.05
  6. Step 6: Final answer
    x = 345,465.68

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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.