Finding the Fourth Proportional to 236.79, 355.86 and 225.99
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Solution
The fourth proportional to 236.79, 355.86 and 225.99 is: 339.63
Step by Step Solution
- Step 1: Write the proportion equation
236.79 : 355.86 = 225.99 : x - Step 2: Convert to fraction form
236.79/355.86 = 225.99/x - Step 3: Cross multiply
236.79x = 355.86 × 225.99 - Step 4: Simplify right side
236.79x = 80,420.80 - Step 5: Solve for x
x = 80,420.80/236.79 - Step 6: Final answer
x = 339.63
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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.