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Finding the Fourth Proportional to 353,635.96, 488,028.37 and 250,455

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Solution

The fourth proportional to 353,635.96, 488,028.37 and 250,455 is: 345,635.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,635.96 : 488,028.37 = 250,455 : x
  2. Step 2: Convert to fraction form
    353,635.96/488,028.37 = 250,455/x
  3. Step 3: Cross multiply
    353,635.96x = 488,028.37 × 250,455
  4. Step 4: Simplify right side
    353,635.96x = 122,229,144,782.21
  5. Step 5: Solve for x
    x = 122,229,144,782.21/353,635.96
  6. Step 6: Final answer
    x = 345,635.51

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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.