Home / 289,065.22-398,878.79-159,983.18

Finding the Fourth Proportional to 289,065.22, 398,878.79 and 159,983.18

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Solution

The fourth proportional to 289,065.22, 398,878.79 and 159,983.18 is: 220,759.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,065.22 : 398,878.79 = 159,983.18 : x
  2. Step 2: Convert to fraction form
    289,065.22/398,878.79 = 159,983.18/x
  3. Step 3: Cross multiply
    289,065.22x = 398,878.79 × 159,983.18
  4. Step 4: Simplify right side
    289,065.22x = 63,813,897,258.75
  5. Step 5: Solve for x
    x = 63,813,897,258.75/289,065.22
  6. Step 6: Final answer
    x = 220,759.51

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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.