Finding the Fourth Proportional to 154.99, 213.96 and 135.35
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Solution
The fourth proportional to 154.99, 213.96 and 135.35 is: 186.84
Step by Step Solution
- Step 1: Write the proportion equation
154.99 : 213.96 = 135.35 : x - Step 2: Convert to fraction form
154.99/213.96 = 135.35/x - Step 3: Cross multiply
154.99x = 213.96 × 135.35 - Step 4: Simplify right side
154.99x = 28,957.74 - Step 5: Solve for x
x = 28,957.74/154.99 - Step 6: Final answer
x = 186.84
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.