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Finding the Fourth Proportional to 300,612.22, 414,845.43 and 162,790.78

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Solution

The fourth proportional to 300,612.22, 414,845.43 and 162,790.78 is: 224,651.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,612.22 : 414,845.43 = 162,790.78 : x
  2. Step 2: Convert to fraction form
    300,612.22/414,845.43 = 162,790.78/x
  3. Step 3: Cross multiply
    300,612.22x = 414,845.43 × 162,790.78
  4. Step 4: Simplify right side
    300,612.22x = 67,533,011,129.14
  5. Step 5: Solve for x
    x = 67,533,011,129.14/300,612.22
  6. Step 6: Final answer
    x = 224,651.58

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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.