Finding the Fourth Proportional to 286.18, 395.14 and 219.96
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Solution
The fourth proportional to 286.18, 395.14 and 219.96 is: 303.71
Step by Step Solution
- Step 1: Write the proportion equation
286.18 : 395.14 = 219.96 : x - Step 2: Convert to fraction form
286.18/395.14 = 219.96/x - Step 3: Cross multiply
286.18x = 395.14 × 219.96 - Step 4: Simplify right side
286.18x = 86,914.99 - Step 5: Solve for x
x = 86,914.99/286.18 - Step 6: Final answer
x = 303.71
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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.