Finding the Fourth Proportional to 218.99, 328.44 and 88.99
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Solution
The fourth proportional to 218.99, 328.44 and 88.99 is: 133.47
Step by Step Solution
- Step 1: Write the proportion equation
218.99 : 328.44 = 88.99 : x - Step 2: Convert to fraction form
218.99/328.44 = 88.99/x - Step 3: Cross multiply
218.99x = 328.44 × 88.99 - Step 4: Simplify right side
218.99x = 29,227.88 - Step 5: Solve for x
x = 29,227.88/218.99 - Step 6: Final answer
x = 133.47
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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.