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Finding the Fourth Proportional to 443,003.20, 664,504.80 and 310,033.60

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Solution

The fourth proportional to 443,003.20, 664,504.80 and 310,033.60 is: 465,050.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,003.20 : 664,504.80 = 310,033.60 : x
  2. Step 2: Convert to fraction form
    443,003.20/664,504.80 = 310,033.60/x
  3. Step 3: Cross multiply
    443,003.20x = 664,504.80 × 310,033.60
  4. Step 4: Simplify right side
    443,003.20x = 206,018,815,361.28
  5. Step 5: Solve for x
    x = 206,018,815,361.28/443,003.20
  6. Step 6: Final answer
    x = 465,050.40

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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.