Home / 210,500.03-290,486.66-115,004.68

Finding the Fourth Proportional to 210,500.03, 290,486.66 and 115,004.68

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Solution

The fourth proportional to 210,500.03, 290,486.66 and 115,004.68 is: 158,704.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,500.03 : 290,486.66 = 115,004.68 : x
  2. Step 2: Convert to fraction form
    210,500.03/290,486.66 = 115,004.68/x
  3. Step 3: Cross multiply
    210,500.03x = 290,486.66 × 115,004.68
  4. Step 4: Simplify right side
    210,500.03x = 33,407,324,076.33
  5. Step 5: Solve for x
    x = 33,407,324,076.33/210,500.03
  6. Step 6: Final answer
    x = 158,704.60

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1.5x scale

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.