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Finding the Fourth Proportional to 375,558.06, 518,253.21 and 205,788.54

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Solution

The fourth proportional to 375,558.06, 518,253.21 and 205,788.54 is: 283,978.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,558.06 : 518,253.21 = 205,788.54 : x
  2. Step 2: Convert to fraction form
    375,558.06/518,253.21 = 205,788.54/x
  3. Step 3: Cross multiply
    375,558.06x = 518,253.21 × 205,788.54
  4. Step 4: Simplify right side
    375,558.06x = 106,650,571,436.21
  5. Step 5: Solve for x
    x = 106,650,571,436.21/375,558.06
  6. Step 6: Final answer
    x = 283,978.92

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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.