Finding the Fourth Proportional to 236.95, 355.15 and 178.99
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Solution
The fourth proportional to 236.95, 355.15 and 178.99 is: 268.28
Step by Step Solution
- Step 1: Write the proportion equation
236.95 : 355.15 = 178.99 : x - Step 2: Convert to fraction form
236.95/355.15 = 178.99/x - Step 3: Cross multiply
236.95x = 355.15 × 178.99 - Step 4: Simplify right side
236.95x = 63,567.63 - Step 5: Solve for x
x = 63,567.63/236.95 - Step 6: Final answer
x = 268.28
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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.