Finding the Fourth Proportional to 163.99, 247.18 and 155.17
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Solution
The fourth proportional to 163.99, 247.18 and 155.17 is: 233.89
Step by Step Solution
- Step 1: Write the proportion equation
163.99 : 247.18 = 155.17 : x - Step 2: Convert to fraction form
163.99/247.18 = 155.17/x - Step 3: Cross multiply
163.99x = 247.18 × 155.17 - Step 4: Simplify right side
163.99x = 38,354.92 - Step 5: Solve for x
x = 38,354.92/163.99 - Step 6: Final answer
x = 233.89
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These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.