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Finding the Fourth Proportional to 455,841.54, 629,059.77 and 251,886.78

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Solution

The fourth proportional to 455,841.54, 629,059.77 and 251,886.78 is: 347,602.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,841.54 : 629,059.77 = 251,886.78 : x
  2. Step 2: Convert to fraction form
    455,841.54/629,059.77 = 251,886.78/x
  3. Step 3: Cross multiply
    455,841.54x = 629,059.77 × 251,886.78
  4. Step 4: Simplify right side
    455,841.54x = 158,451,839,892.84
  5. Step 5: Solve for x
    x = 158,451,839,892.84/455,841.54
  6. Step 6: Final answer
    x = 347,602.90

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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.