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Finding the Fourth Proportional to 325,349.64, 448,918.65 and 204,420.78

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Solution

The fourth proportional to 325,349.64, 448,918.65 and 204,420.78 is: 282,060.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,349.64 : 448,918.65 = 204,420.78 : x
  2. Step 2: Convert to fraction form
    325,349.64/448,918.65 = 204,420.78/x
  3. Step 3: Cross multiply
    325,349.64x = 448,918.65 × 204,420.78
  4. Step 4: Simplify right side
    325,349.64x = 91,768,300,589.55
  5. Step 5: Solve for x
    x = 91,768,300,589.55/325,349.64
  6. Step 6: Final answer
    x = 282,060.56

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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.