Finding the Fourth Proportional to 228.06, 342.09 and 216.99
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Solution
The fourth proportional to 228.06, 342.09 and 216.99 is: 325.49
Step by Step Solution
- Step 1: Write the proportion equation
228.06 : 342.09 = 216.99 : x - Step 2: Convert to fraction form
228.06/342.09 = 216.99/x - Step 3: Cross multiply
228.06x = 342.09 × 216.99 - Step 4: Simplify right side
228.06x = 74,230.11 - Step 5: Solve for x
x = 74,230.11/228.06 - Step 6: Final answer
x = 325.49
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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.