Finding the Fourth Proportional to 203.77, 280.93 and 172.99
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Solution
The fourth proportional to 203.77, 280.93 and 172.99 is: 238.49
Step by Step Solution
- Step 1: Write the proportion equation
203.77 : 280.93 = 172.99 : x - Step 2: Convert to fraction form
203.77/280.93 = 172.99/x - Step 3: Cross multiply
203.77x = 280.93 × 172.99 - Step 4: Simplify right side
203.77x = 48,598.08 - Step 5: Solve for x
x = 48,598.08/203.77 - Step 6: Final answer
x = 238.49
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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.