Home / 455,226.45-628,212.53-251,277.42

Finding the Fourth Proportional to 455,226.45, 628,212.53 and 251,277.42

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Solution

The fourth proportional to 455,226.45, 628,212.53 and 251,277.42 is: 346,762.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,226.45 : 628,212.53 = 251,277.42 : x
  2. Step 2: Convert to fraction form
    455,226.45/628,212.53 = 251,277.42/x
  3. Step 3: Cross multiply
    455,226.45x = 628,212.53 × 251,277.42
  4. Step 4: Simplify right side
    455,226.45x = 157,855,625,320.63
  5. Step 5: Solve for x
    x = 157,855,625,320.63/455,226.45
  6. Step 6: Final answer
    x = 346,762.86

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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.