Finding the Fourth Proportional to 202.11, 302.95 and 93.81
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Solution
The fourth proportional to 202.11, 302.95 and 93.81 is: 140.62
Step by Step Solution
- Step 1: Write the proportion equation
202.11 : 302.95 = 93.81 : x - Step 2: Convert to fraction form
202.11/302.95 = 93.81/x - Step 3: Cross multiply
202.11x = 302.95 × 93.81 - Step 4: Simplify right side
202.11x = 28,419.74 - Step 5: Solve for x
x = 28,419.74/202.11 - Step 6: Final answer
x = 140.62
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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.