Finding the Fourth Proportional to 163.47, 245.14 and 47.88
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Solution
The fourth proportional to 163.47, 245.14 and 47.88 is: 71.80
Step by Step Solution
- Step 1: Write the proportion equation
163.47 : 245.14 = 47.88 : x - Step 2: Convert to fraction form
163.47/245.14 = 47.88/x - Step 3: Cross multiply
163.47x = 245.14 × 47.88 - Step 4: Simplify right side
163.47x = 11,737.18 - Step 5: Solve for x
x = 11,737.18/163.47 - Step 6: Final answer
x = 71.80
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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.