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Finding the Fourth Proportional to 223,749.85, 335,520.72 and 81,496.09

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Solution

The fourth proportional to 223,749.85, 335,520.72 and 81,496.09 is: 122,206.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,749.85 : 335,520.72 = 81,496.09 : x
  2. Step 2: Convert to fraction form
    223,749.85/335,520.72 = 81,496.09/x
  3. Step 3: Cross multiply
    223,749.85x = 335,520.72 × 81,496.09
  4. Step 4: Simplify right side
    223,749.85x = 27,343,626,386.50
  5. Step 5: Solve for x
    x = 27,343,626,386.50/223,749.85
  6. Step 6: Final answer
    x = 122,206.23

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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.