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Finding the Fourth Proportional to 325,857.70, 488,786.55 and 302,238.10

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Solution

The fourth proportional to 325,857.70, 488,786.55 and 302,238.10 is: 453,357.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,857.70 : 488,786.55 = 302,238.10 : x
  2. Step 2: Convert to fraction form
    325,857.70/488,786.55 = 302,238.10/x
  3. Step 3: Cross multiply
    325,857.70x = 488,786.55 × 302,238.10
  4. Step 4: Simplify right side
    325,857.70x = 147,729,918,177.56
  5. Step 5: Solve for x
    x = 147,729,918,177.56/325,857.70
  6. Step 6: Final answer
    x = 453,357.15

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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.