Finding the Fourth Proportional to 163.08, 224.98 and 107.80
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Solution
The fourth proportional to 163.08, 224.98 and 107.80 is: 148.71
Step by Step Solution
- Step 1: Write the proportion equation
163.08 : 224.98 = 107.80 : x - Step 2: Convert to fraction form
163.08/224.98 = 107.80/x - Step 3: Cross multiply
163.08x = 224.98 × 107.80 - Step 4: Simplify right side
163.08x = 24,252.01 - Step 5: Solve for x
x = 24,252.01/163.08 - Step 6: Final answer
x = 148.71
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.