Finding the Fourth Proportional to 118.17, 177.30 and 60.42
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Solution
The fourth proportional to 118.17, 177.30 and 60.42 is: 90.65
Step by Step Solution
- Step 1: Write the proportion equation
118.17 : 177.30 = 60.42 : x - Step 2: Convert to fraction form
118.17/177.30 = 60.42/x - Step 3: Cross multiply
118.17x = 177.30 × 60.42 - Step 4: Simplify right side
118.17x = 10,712.47 - Step 5: Solve for x
x = 10,712.47/118.17 - Step 6: Final answer
x = 90.65
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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.