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Finding the Fourth Proportional to 223,491.51, 335,447.91 and 81,474.12

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Solution

The fourth proportional to 223,491.51, 335,447.91 and 81,474.12 is: 122,287.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,491.51 : 335,447.91 = 81,474.12 : x
  2. Step 2: Convert to fraction form
    223,491.51/335,447.91 = 81,474.12/x
  3. Step 3: Cross multiply
    223,491.51x = 335,447.91 × 81,474.12
  4. Step 4: Simplify right side
    223,491.51x = 27,330,323,273.09
  5. Step 5: Solve for x
    x = 27,330,323,273.09/223,491.51
  6. Step 6: Final answer
    x = 122,287.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.