Finding the Fourth Proportional to 147.36, 220.91 and 55.99
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Solution
The fourth proportional to 147.36, 220.91 and 55.99 is: 83.94
Step by Step Solution
- Step 1: Write the proportion equation
147.36 : 220.91 = 55.99 : x - Step 2: Convert to fraction form
147.36/220.91 = 55.99/x - Step 3: Cross multiply
147.36x = 220.91 × 55.99 - Step 4: Simplify right side
147.36x = 12,369.44 - Step 5: Solve for x
x = 12,369.44/147.36 - Step 6: Final answer
x = 83.94
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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.