Finding the Fourth Proportional to 135.68, 202.36 and 130.88
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Solution
The fourth proportional to 135.68, 202.36 and 130.88 is: 195.20
Step by Step Solution
- Step 1: Write the proportion equation
135.68 : 202.36 = 130.88 : x - Step 2: Convert to fraction form
135.68/202.36 = 130.88/x - Step 3: Cross multiply
135.68x = 202.36 × 130.88 - Step 4: Simplify right side
135.68x = 26,484.88 - Step 5: Solve for x
x = 26,484.88/135.68 - Step 6: Final answer
x = 195.20
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.