Home / 210,973.82-291,144.30-115,486.61

Finding the Fourth Proportional to 210,973.82, 291,144.30 and 115,486.61

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Solution

The fourth proportional to 210,973.82, 291,144.30 and 115,486.61 is: 159,371.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,973.82 : 291,144.30 = 115,486.61 : x
  2. Step 2: Convert to fraction form
    210,973.82/291,144.30 = 115,486.61/x
  3. Step 3: Cross multiply
    210,973.82x = 291,144.30 × 115,486.61
  4. Step 4: Simplify right side
    210,973.82x = 33,623,268,227.82
  5. Step 5: Solve for x
    x = 33,623,268,227.82/210,973.82
  6. Step 6: Final answer
    x = 159,371.76

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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.