Finding the Fourth Proportional to 188.97, 260.88 and 129.99
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Solution
The fourth proportional to 188.97, 260.88 and 129.99 is: 179.46
Step by Step Solution
- Step 1: Write the proportion equation
188.97 : 260.88 = 129.99 : x - Step 2: Convert to fraction form
188.97/260.88 = 129.99/x - Step 3: Cross multiply
188.97x = 260.88 × 129.99 - Step 4: Simplify right side
188.97x = 33,911.79 - Step 5: Solve for x
x = 33,911.79/188.97 - Step 6: Final answer
x = 179.46
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.