Finding the Fourth Proportional to 135.17, 202.74 and 58.18
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Solution
The fourth proportional to 135.17, 202.74 and 58.18 is: 87.26
Step by Step Solution
- Step 1: Write the proportion equation
135.17 : 202.74 = 58.18 : x - Step 2: Convert to fraction form
135.17/202.74 = 58.18/x - Step 3: Cross multiply
135.17x = 202.74 × 58.18 - Step 4: Simplify right side
135.17x = 11,795.41 - Step 5: Solve for x
x = 11,795.41/135.17 - Step 6: Final answer
x = 87.26
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.