Finding the Fourth Proportional to 135.18, 202.84 and 70.17
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Solution
The fourth proportional to 135.18, 202.84 and 70.17 is: 105.29
Step by Step Solution
- Step 1: Write the proportion equation
135.18 : 202.84 = 70.17 : x - Step 2: Convert to fraction form
135.18/202.84 = 70.17/x - Step 3: Cross multiply
135.18x = 202.84 × 70.17 - Step 4: Simplify right side
135.18x = 14,233.20 - Step 5: Solve for x
x = 14,233.20/135.18 - Step 6: Final answer
x = 105.29
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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.