Home / 281,091.60-388,021.80-190,571.52

Finding the Fourth Proportional to 281,091.60, 388,021.80 and 190,571.52

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Solution

The fourth proportional to 281,091.60, 388,021.80 and 190,571.52 is: 263,066.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,091.60 : 388,021.80 = 190,571.52 : x
  2. Step 2: Convert to fraction form
    281,091.60/388,021.80 = 190,571.52/x
  3. Step 3: Cross multiply
    281,091.60x = 388,021.80 × 190,571.52
  4. Step 4: Simplify right side
    281,091.60x = 73,945,904,219.14
  5. Step 5: Solve for x
    x = 73,945,904,219.14/281,091.60
  6. Step 6: Final answer
    x = 263,066.93

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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.