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Finding the Fourth Proportional to 351,149.58, 484,128.90 and 223,778.70

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Solution

The fourth proportional to 351,149.58, 484,128.90 and 223,778.70 is: 308,523.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,149.58 : 484,128.90 = 223,778.70 : x
  2. Step 2: Convert to fraction form
    351,149.58/484,128.90 = 223,778.70/x
  3. Step 3: Cross multiply
    351,149.58x = 484,128.90 × 223,778.70
  4. Step 4: Simplify right side
    351,149.58x = 108,337,735,874.43
  5. Step 5: Solve for x
    x = 108,337,735,874.43/351,149.58
  6. Step 6: Final answer
    x = 308,523.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.