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Finding the Fourth Proportional to 455,861.01, 629,056.73 and 251,910

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Solution

The fourth proportional to 455,861.01, 629,056.73 and 251,910 is: 347,618.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,861.01 : 629,056.73 = 251,910 : x
  2. Step 2: Convert to fraction form
    455,861.01/629,056.73 = 251,910/x
  3. Step 3: Cross multiply
    455,861.01x = 629,056.73 × 251,910
  4. Step 4: Simplify right side
    455,861.01x = 158,465,681,484.08
  5. Step 5: Solve for x
    x = 158,465,681,484.08/455,861.01
  6. Step 6: Final answer
    x = 347,618.41

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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.