Home / 210,540.48-290,546.63-115,047.19

Finding the Fourth Proportional to 210,540.48, 290,546.63 and 115,047.19

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Solution

The fourth proportional to 210,540.48, 290,546.63 and 115,047.19 is: 158,765.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,540.48 : 290,546.63 = 115,047.19 : x
  2. Step 2: Convert to fraction form
    210,540.48/290,546.63 = 115,047.19/x
  3. Step 3: Cross multiply
    210,540.48x = 290,546.63 × 115,047.19
  4. Step 4: Simplify right side
    210,540.48x = 33,426,571,930.52
  5. Step 5: Solve for x
    x = 33,426,571,930.52/210,540.48
  6. Step 6: Final answer
    x = 158,765.53

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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.