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Finding the Fourth Proportional to 419,255.64, 628,888.32 and 179,336.88

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Solution

The fourth proportional to 419,255.64, 628,888.32 and 179,336.88 is: 269,007.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,255.64 : 628,888.32 = 179,336.88 : x
  2. Step 2: Convert to fraction form
    419,255.64/628,888.32 = 179,336.88/x
  3. Step 3: Cross multiply
    419,255.64x = 628,888.32 × 179,336.88
  4. Step 4: Simplify right side
    419,255.64x = 112,782,869,177.24
  5. Step 5: Solve for x
    x = 112,782,869,177.24/419,255.64
  6. Step 6: Final answer
    x = 269,007.40

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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.