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Finding the Fourth Proportional to 449,348.37, 620,104.97 and 255,746.58

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Solution

The fourth proportional to 449,348.37, 620,104.97 and 255,746.58 is: 352,932.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,348.37 : 620,104.97 = 255,746.58 : x
  2. Step 2: Convert to fraction form
    449,348.37/620,104.97 = 255,746.58/x
  3. Step 3: Cross multiply
    449,348.37x = 620,104.97 × 255,746.58
  4. Step 4: Simplify right side
    449,348.37x = 158,589,727,799.22
  5. Step 5: Solve for x
    x = 158,589,727,799.22/449,348.37
  6. Step 6: Final answer
    x = 352,932.69

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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.