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Finding the Fourth Proportional to 354,958.56, 489,862.64 and 193,828.56

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Solution

The fourth proportional to 354,958.56, 489,862.64 and 193,828.56 is: 267,494.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,958.56 : 489,862.64 = 193,828.56 : x
  2. Step 2: Convert to fraction form
    354,958.56/489,862.64 = 193,828.56/x
  3. Step 3: Cross multiply
    354,958.56x = 489,862.64 × 193,828.56
  4. Step 4: Simplify right side
    354,958.56x = 94,949,370,109.00
  5. Step 5: Solve for x
    x = 94,949,370,109.00/354,958.56
  6. Step 6: Final answer
    x = 267,494.24

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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.