Finding the Fourth Proportional to 135.55, 202.16 and 122.59
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Solution
The fourth proportional to 135.55, 202.16 and 122.59 is: 182.83
Step by Step Solution
- Step 1: Write the proportion equation
135.55 : 202.16 = 122.59 : x - Step 2: Convert to fraction form
135.55/202.16 = 122.59/x - Step 3: Cross multiply
135.55x = 202.16 × 122.59 - Step 4: Simplify right side
135.55x = 24,782.79 - Step 5: Solve for x
x = 24,782.79/135.55 - Step 6: Final answer
x = 182.83
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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.