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Finding the Fourth Proportional to 455,900.04, 629,122.68 and 251,958.60

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Solution

The fourth proportional to 455,900.04, 629,122.68 and 251,958.60 is: 347,692.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,900.04 : 629,122.68 = 251,958.60 : x
  2. Step 2: Convert to fraction form
    455,900.04/629,122.68 = 251,958.60/x
  3. Step 3: Cross multiply
    455,900.04x = 629,122.68 × 251,958.60
  4. Step 4: Simplify right side
    455,900.04x = 158,512,869,681.05
  5. Step 5: Solve for x
    x = 158,512,869,681.05/455,900.04
  6. Step 6: Final answer
    x = 347,692.16

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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.