Finding the Fourth Proportional to 355.81, 533.19 and 172.99
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Solution
The fourth proportional to 355.81, 533.19 and 172.99 is: 259.23
Step by Step Solution
- Step 1: Write the proportion equation
355.81 : 533.19 = 172.99 : x - Step 2: Convert to fraction form
355.81/533.19 = 172.99/x - Step 3: Cross multiply
355.81x = 533.19 × 172.99 - Step 4: Simplify right side
355.81x = 92,235.67 - Step 5: Solve for x
x = 92,235.67/355.81 - Step 6: Final answer
x = 259.23
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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.