Finding the Fourth Proportional to 135.28, 202.94 and 49.80
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Solution
The fourth proportional to 135.28, 202.94 and 49.80 is: 74.71
Step by Step Solution
- Step 1: Write the proportion equation
135.28 : 202.94 = 49.80 : x - Step 2: Convert to fraction form
135.28/202.94 = 49.80/x - Step 3: Cross multiply
135.28x = 202.94 × 49.80 - Step 4: Simplify right side
135.28x = 10,106.41 - Step 5: Solve for x
x = 10,106.41/135.28 - Step 6: Final answer
x = 74.71
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.