Finding the Fourth Proportional to 147.17, 202.99 and 135.56
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Solution
The fourth proportional to 147.17, 202.99 and 135.56 is: 186.98
Step by Step Solution
- Step 1: Write the proportion equation
147.17 : 202.99 = 135.56 : x - Step 2: Convert to fraction form
147.17/202.99 = 135.56/x - Step 3: Cross multiply
147.17x = 202.99 × 135.56 - Step 4: Simplify right side
147.17x = 27,517.32 - Step 5: Solve for x
x = 27,517.32/147.17 - Step 6: Final answer
x = 186.98
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.