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Finding the Fourth Proportional to 455,166, 628,129.08 and 253,962

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Solution

The fourth proportional to 455,166, 628,129.08 and 253,962 is: 350,467.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,166 : 628,129.08 = 253,962 : x
  2. Step 2: Convert to fraction form
    455,166/628,129.08 = 253,962/x
  3. Step 3: Cross multiply
    455,166x = 628,129.08 × 253,962
  4. Step 4: Simplify right side
    455,166x = 159,520,917,414.96
  5. Step 5: Solve for x
    x = 159,520,917,414.96/455,166
  6. Step 6: Final answer
    x = 350,467.56

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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.