Home / 201,918.36-278,458.34-159,578.04

Finding the Fourth Proportional to 201,918.36, 278,458.34 and 159,578.04

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Solution

The fourth proportional to 201,918.36, 278,458.34 and 159,578.04 is: 220,068.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,918.36 : 278,458.34 = 159,578.04 : x
  2. Step 2: Convert to fraction form
    201,918.36/278,458.34 = 159,578.04/x
  3. Step 3: Cross multiply
    201,918.36x = 278,458.34 × 159,578.04
  4. Step 4: Simplify right side
    201,918.36x = 44,435,836,118.85
  5. Step 5: Solve for x
    x = 44,435,836,118.85/201,918.36
  6. Step 6: Final answer
    x = 220,068.33

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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.