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Finding the Fourth Proportional to 455,745.04, 628,934.73 and 251,800.67

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Solution

The fourth proportional to 455,745.04, 628,934.73 and 251,800.67 is: 347,488.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,745.04 : 628,934.73 = 251,800.67 : x
  2. Step 2: Convert to fraction form
    455,745.04/628,934.73 = 251,800.67/x
  3. Step 3: Cross multiply
    455,745.04x = 628,934.73 × 251,800.67
  4. Step 4: Simplify right side
    455,745.04x = 158,366,187,028.35
  5. Step 5: Solve for x
    x = 158,366,187,028.35/455,745.04
  6. Step 6: Final answer
    x = 347,488.56

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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.