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Finding the Fourth Proportional to 354,460.53, 488,878.97 and 227,147.97

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Solution

The fourth proportional to 354,460.53, 488,878.97 and 227,147.97 is: 313,286.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,460.53 : 488,878.97 = 227,147.97 : x
  2. Step 2: Convert to fraction form
    354,460.53/488,878.97 = 227,147.97/x
  3. Step 3: Cross multiply
    354,460.53x = 488,878.97 × 227,147.97
  4. Step 4: Simplify right side
    354,460.53x = 111,047,864,475.45
  5. Step 5: Solve for x
    x = 111,047,864,475.45/354,460.53
  6. Step 6: Final answer
    x = 313,286.97

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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.