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Finding the Fourth Proportional to 455,162.46, 628,121.08 and 251,213.37

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Solution

The fourth proportional to 455,162.46, 628,121.08 and 251,213.37 is: 346,672.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,162.46 : 628,121.08 = 251,213.37 : x
  2. Step 2: Convert to fraction form
    455,162.46/628,121.08 = 251,213.37/x
  3. Step 3: Cross multiply
    455,162.46x = 628,121.08 × 251,213.37
  4. Step 4: Simplify right side
    455,162.46x = 157,792,411,233.40
  5. Step 5: Solve for x
    x = 157,792,411,233.40/455,162.46
  6. Step 6: Final answer
    x = 346,672.73

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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.