Finding the Fourth Proportional to 286.99, 395.99 and 162.63
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Solution
The fourth proportional to 286.99, 395.99 and 162.63 is: 224.40
Step by Step Solution
- Step 1: Write the proportion equation
286.99 : 395.99 = 162.63 : x - Step 2: Convert to fraction form
286.99/395.99 = 162.63/x - Step 3: Cross multiply
286.99x = 395.99 × 162.63 - Step 4: Simplify right side
286.99x = 64,400.26 - Step 5: Solve for x
x = 64,400.26/286.99 - Step 6: Final answer
x = 224.40
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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.