Finding the Fourth Proportional to 286.41, 395.02 and 187.99
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Solution
The fourth proportional to 286.41, 395.02 and 187.99 is: 259.28
Step by Step Solution
- Step 1: Write the proportion equation
286.41 : 395.02 = 187.99 : x - Step 2: Convert to fraction form
286.41/395.02 = 187.99/x - Step 3: Cross multiply
286.41x = 395.02 × 187.99 - Step 4: Simplify right side
286.41x = 74,259.81 - Step 5: Solve for x
x = 74,259.81/286.41 - Step 6: Final answer
x = 259.28
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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.