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Finding the Fourth Proportional to 223,474.76, 335,106.78 and 81,219.98

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Solution

The fourth proportional to 223,474.76, 335,106.78 and 81,219.98 is: 121,791.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,474.76 : 335,106.78 = 81,219.98 : x
  2. Step 2: Convert to fraction form
    223,474.76/335,106.78 = 81,219.98/x
  3. Step 3: Cross multiply
    223,474.76x = 335,106.78 × 81,219.98
  4. Step 4: Simplify right side
    223,474.76x = 27,217,363,887.83
  5. Step 5: Solve for x
    x = 27,217,363,887.83/223,474.76
  6. Step 6: Final answer
    x = 121,791.67

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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.