Home / 325,916.60-489,065.58-136,361.07

Finding the Fourth Proportional to 325,916.60, 489,065.58 and 136,361.07

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Solution

The fourth proportional to 325,916.60, 489,065.58 and 136,361.07 is: 204,621.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,916.60 : 489,065.58 = 136,361.07 : x
  2. Step 2: Convert to fraction form
    325,916.60/489,065.58 = 136,361.07/x
  3. Step 3: Cross multiply
    325,916.60x = 489,065.58 × 136,361.07
  4. Step 4: Simplify right side
    325,916.60x = 66,689,505,788.97
  5. Step 5: Solve for x
    x = 66,689,505,788.97/325,916.60
  6. Step 6: Final answer
    x = 204,621.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.