Home / 210,837.36-290,959.08-115,344.72

Finding the Fourth Proportional to 210,837.36, 290,959.08 and 115,344.72

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Solution

The fourth proportional to 210,837.36, 290,959.08 and 115,344.72 is: 159,177.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,837.36 : 290,959.08 = 115,344.72 : x
  2. Step 2: Convert to fraction form
    210,837.36/290,959.08 = 115,344.72/x
  3. Step 3: Cross multiply
    210,837.36x = 290,959.08 × 115,344.72
  4. Step 4: Simplify right side
    210,837.36x = 33,560,593,614.06
  5. Step 5: Solve for x
    x = 33,560,593,614.06/210,837.36
  6. Step 6: Final answer
    x = 159,177.64

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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.