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Finding the Fourth Proportional to 218,394.23, 300,626.24 and 188,279.24

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Solution

The fourth proportional to 218,394.23, 300,626.24 and 188,279.24 is: 259,172.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,394.23 : 300,626.24 = 188,279.24 : x
  2. Step 2: Convert to fraction form
    218,394.23/300,626.24 = 188,279.24/x
  3. Step 3: Cross multiply
    218,394.23x = 300,626.24 × 188,279.24
  4. Step 4: Simplify right side
    218,394.23x = 56,601,677,546.73
  5. Step 5: Solve for x
    x = 56,601,677,546.73/218,394.23
  6. Step 6: Final answer
    x = 259,172.04

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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.