Home / 201,844.44-278,532-121,224.06

Finding the Fourth Proportional to 201,844.44, 278,532 and 121,224.06

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Solution

The fourth proportional to 201,844.44, 278,532 and 121,224.06 is: 167,281.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,844.44 : 278,532 = 121,224.06 : x
  2. Step 2: Convert to fraction form
    201,844.44/278,532 = 121,224.06/x
  3. Step 3: Cross multiply
    201,844.44x = 278,532 × 121,224.06
  4. Step 4: Simplify right side
    201,844.44x = 33,764,779,879.92
  5. Step 5: Solve for x
    x = 33,764,779,879.92/201,844.44
  6. Step 6: Final answer
    x = 167,281.20

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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.