Finding the Fourth Proportional to 185.19, 277.80 and 69.63
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Solution
The fourth proportional to 185.19, 277.80 and 69.63 is: 104.45
Step by Step Solution
- Step 1: Write the proportion equation
185.19 : 277.80 = 69.63 : x - Step 2: Convert to fraction form
185.19/277.80 = 69.63/x - Step 3: Cross multiply
185.19x = 277.80 × 69.63 - Step 4: Simplify right side
185.19x = 19,343.21 - Step 5: Solve for x
x = 19,343.21/185.19 - Step 6: Final answer
x = 104.45
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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.