Finding the Fourth Proportional to 188,890.25, 260,660.84 and 108,261.63
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Solution
The fourth proportional to 188,890.25, 260,660.84 and 108,261.63 is: 149,396.63
Step by Step Solution
- Step 1: Write the proportion equation
188,890.25 : 260,660.84 = 108,261.63 : x - Step 2: Convert to fraction form
188,890.25/260,660.84 = 108,261.63/x - Step 3: Cross multiply
188,890.25x = 260,660.84 × 108,261.63 - Step 4: Simplify right side
188,890.25x = 28,219,566,874.26 - Step 5: Solve for x
x = 28,219,566,874.26/188,890.25 - Step 6: Final answer
x = 149,396.63
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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.