Home / 210,991.44-291,165.96-115,498.32

Finding the Fourth Proportional to 210,991.44, 291,165.96 and 115,498.32

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Solution

The fourth proportional to 210,991.44, 291,165.96 and 115,498.32 is: 159,386.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,991.44 : 291,165.96 = 115,498.32 : x
  2. Step 2: Convert to fraction form
    210,991.44/291,165.96 = 115,498.32/x
  3. Step 3: Cross multiply
    210,991.44x = 291,165.96 × 115,498.32
  4. Step 4: Simplify right side
    210,991.44x = 33,629,179,221.19
  5. Step 5: Solve for x
    x = 33,629,179,221.19/210,991.44
  6. Step 6: Final answer
    x = 159,386.46

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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.