Finding the Fourth Proportional to 147.73, 221.52 and 86.02
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Solution
The fourth proportional to 147.73, 221.52 and 86.02 is: 128.99
Step by Step Solution
- Step 1: Write the proportion equation
147.73 : 221.52 = 86.02 : x - Step 2: Convert to fraction form
147.73/221.52 = 86.02/x - Step 3: Cross multiply
147.73x = 221.52 × 86.02 - Step 4: Simplify right side
147.73x = 19,055.15 - Step 5: Solve for x
x = 19,055.15/147.73 - Step 6: Final answer
x = 128.99
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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.