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Finding the Fourth Proportional to 455,226.73, 628,212.92 and 251,277.71

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Solution

The fourth proportional to 455,226.73, 628,212.92 and 251,277.71 is: 346,763.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,226.73 : 628,212.92 = 251,277.71 : x
  2. Step 2: Convert to fraction form
    455,226.73/628,212.92 = 251,277.71/x
  3. Step 3: Cross multiply
    455,226.73x = 628,212.92 × 251,277.71
  4. Step 4: Simplify right side
    455,226.73x = 157,855,903,930.01
  5. Step 5: Solve for x
    x = 157,855,903,930.01/455,226.73
  6. Step 6: Final answer
    x = 346,763.26

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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.