Finding the Fourth Proportional to 135.30, 202.93 and 37.81
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Solution
The fourth proportional to 135.30, 202.93 and 37.81 is: 56.70
Step by Step Solution
- Step 1: Write the proportion equation
135.30 : 202.93 = 37.81 : x - Step 2: Convert to fraction form
135.30/202.93 = 37.81/x - Step 3: Cross multiply
135.30x = 202.93 × 37.81 - Step 4: Simplify right side
135.30x = 7,672.18 - Step 5: Solve for x
x = 7,672.18/135.30 - Step 6: Final answer
x = 56.70
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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.