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Finding the Fourth Proportional to 455,817.25, 629,027.85 and 254,613.25

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Solution

The fourth proportional to 455,817.25, 629,027.85 and 254,613.25 is: 351,366.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,817.25 : 629,027.85 = 254,613.25 : x
  2. Step 2: Convert to fraction form
    455,817.25/629,027.85 = 254,613.25/x
  3. Step 3: Cross multiply
    455,817.25x = 629,027.85 × 254,613.25
  4. Step 4: Simplify right side
    455,817.25x = 160,158,825,229.01
  5. Step 5: Solve for x
    x = 160,158,825,229.01/455,817.25
  6. Step 6: Final answer
    x = 351,366.31

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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.