Finding the Fourth Proportional to 202.11, 302.95 and 130.02
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Solution
The fourth proportional to 202.11, 302.95 and 130.02 is: 194.89
Step by Step Solution
- Step 1: Write the proportion equation
202.11 : 302.95 = 130.02 : x - Step 2: Convert to fraction form
202.11/302.95 = 130.02/x - Step 3: Cross multiply
202.11x = 302.95 × 130.02 - Step 4: Simplify right side
202.11x = 39,389.56 - Step 5: Solve for x
x = 39,389.56/202.11 - Step 6: Final answer
x = 194.89
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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.