Finding the Fourth Proportional to 162.79, 224.67 and 100.63
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Solution
The fourth proportional to 162.79, 224.67 and 100.63 is: 138.88
Step by Step Solution
- Step 1: Write the proportion equation
162.79 : 224.67 = 100.63 : x - Step 2: Convert to fraction form
162.79/224.67 = 100.63/x - Step 3: Cross multiply
162.79x = 224.67 × 100.63 - Step 4: Simplify right side
162.79x = 22,608.54 - Step 5: Solve for x
x = 22,608.54/162.79 - Step 6: Final answer
x = 138.88
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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.