Finding the Fourth Proportional to 269.99, 405.08 and 107.58
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Solution
The fourth proportional to 269.99, 405.08 and 107.58 is: 161.41
Step by Step Solution
- Step 1: Write the proportion equation
269.99 : 405.08 = 107.58 : x - Step 2: Convert to fraction form
269.99/405.08 = 107.58/x - Step 3: Cross multiply
269.99x = 405.08 × 107.58 - Step 4: Simplify right side
269.99x = 43,578.51 - Step 5: Solve for x
x = 43,578.51/269.99 - Step 6: Final answer
x = 161.41
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.