Finding the Fourth Proportional to 177.18, 265.74 and 74.44
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Solution
The fourth proportional to 177.18, 265.74 and 74.44 is: 111.65
Step by Step Solution
- Step 1: Write the proportion equation
177.18 : 265.74 = 74.44 : x - Step 2: Convert to fraction form
177.18/265.74 = 74.44/x - Step 3: Cross multiply
177.18x = 265.74 × 74.44 - Step 4: Simplify right side
177.18x = 19,781.69 - Step 5: Solve for x
x = 19,781.69/177.18 - Step 6: Final answer
x = 111.65
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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.