Finding the Fourth Proportional to 286.99, 395.79 and 188.58
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Solution
The fourth proportional to 286.99, 395.79 and 188.58 is: 260.06
Step by Step Solution
- Step 1: Write the proportion equation
286.99 : 395.79 = 188.58 : x - Step 2: Convert to fraction form
286.99/395.79 = 188.58/x - Step 3: Cross multiply
286.99x = 395.79 × 188.58 - Step 4: Simplify right side
286.99x = 74,636.63 - Step 5: Solve for x
x = 74,636.63/286.99 - Step 6: Final answer
x = 260.06
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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.