Home / 455,228.20-628,214.94-251,279.18

Finding the Fourth Proportional to 455,228.20, 628,214.94 and 251,279.18

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Solution

The fourth proportional to 455,228.20, 628,214.94 and 251,279.18 is: 346,765.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,228.20 : 628,214.94 = 251,279.18 : x
  2. Step 2: Convert to fraction form
    455,228.20/628,214.94 = 251,279.18/x
  3. Step 3: Cross multiply
    455,228.20x = 628,214.94 × 251,279.18
  4. Step 4: Simplify right side
    455,228.20x = 157,857,334,986.95
  5. Step 5: Solve for x
    x = 157,857,334,986.95/455,228.20
  6. Step 6: Final answer
    x = 346,765.28

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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.