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Finding the Fourth Proportional to 455,228.98, 628,216.02 and 251,279.96

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Solution

The fourth proportional to 455,228.98, 628,216.02 and 251,279.96 is: 346,766.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,228.98 : 628,216.02 = 251,279.96 : x
  2. Step 2: Convert to fraction form
    455,228.98/628,216.02 = 251,279.96/x
  3. Step 3: Cross multiply
    455,228.98x = 628,216.02 × 251,279.96
  4. Step 4: Simplify right side
    455,228.98x = 157,858,093,235.88
  5. Step 5: Solve for x
    x = 157,858,093,235.88/455,228.98
  6. Step 6: Final answer
    x = 346,766.36

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1.5x scale

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.