Finding the Fourth Proportional to 153.19, 229.68 and 71.99
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Solution
The fourth proportional to 153.19, 229.68 and 71.99 is: 107.94
Step by Step Solution
- Step 1: Write the proportion equation
153.19 : 229.68 = 71.99 : x - Step 2: Convert to fraction form
153.19/229.68 = 71.99/x - Step 3: Cross multiply
153.19x = 229.68 × 71.99 - Step 4: Simplify right side
153.19x = 16,534.66 - Step 5: Solve for x
x = 16,534.66/153.19 - Step 6: Final answer
x = 107.94
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.