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Finding the Fourth Proportional to 455,625.96, 628,751.22 and 251,673.64

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Solution

The fourth proportional to 455,625.96, 628,751.22 and 251,673.64 is: 347,302.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,625.96 : 628,751.22 = 251,673.64 : x
  2. Step 2: Convert to fraction form
    455,625.96/628,751.22 = 251,673.64/x
  3. Step 3: Cross multiply
    455,625.96x = 628,751.22 × 251,673.64
  4. Step 4: Simplify right side
    455,625.96x = 158,240,108,191.84
  5. Step 5: Solve for x
    x = 158,240,108,191.84/455,625.96
  6. Step 6: Final answer
    x = 347,302.66

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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.