Finding the Fourth Proportional to 161.55, 242.04 and 141.21
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Solution
The fourth proportional to 161.55, 242.04 and 141.21 is: 211.57
Step by Step Solution
- Step 1: Write the proportion equation
161.55 : 242.04 = 141.21 : x - Step 2: Convert to fraction form
161.55/242.04 = 141.21/x - Step 3: Cross multiply
161.55x = 242.04 × 141.21 - Step 4: Simplify right side
161.55x = 34,178.47 - Step 5: Solve for x
x = 34,178.47/161.55 - Step 6: Final answer
x = 211.57
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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.