Finding the Fourth Proportional to 236.07, 354.15 and 81.99
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Solution
The fourth proportional to 236.07, 354.15 and 81.99 is: 123.00
Step by Step Solution
- Step 1: Write the proportion equation
236.07 : 354.15 = 81.99 : x - Step 2: Convert to fraction form
236.07/354.15 = 81.99/x - Step 3: Cross multiply
236.07x = 354.15 × 81.99 - Step 4: Simplify right side
236.07x = 29,036.76 - Step 5: Solve for x
x = 29,036.76/236.07 - Step 6: Final answer
x = 123.00
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.