Home / 210,780.44-290,883.92-115,287.14

Finding the Fourth Proportional to 210,780.44, 290,883.92 and 115,287.14

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Solution

The fourth proportional to 210,780.44, 290,883.92 and 115,287.14 is: 159,100.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,780.44 : 290,883.92 = 115,287.14 : x
  2. Step 2: Convert to fraction form
    210,780.44/290,883.92 = 115,287.14/x
  3. Step 3: Cross multiply
    210,780.44x = 290,883.92 × 115,287.14
  4. Step 4: Simplify right side
    210,780.44x = 33,535,173,177.93
  5. Step 5: Solve for x
    x = 33,535,173,177.93/210,780.44
  6. Step 6: Final answer
    x = 159,100.03

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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.