Finding the Fourth Proportional to 177.51, 245.08 and 135.99
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Solution
The fourth proportional to 177.51, 245.08 and 135.99 is: 187.75
Step by Step Solution
- Step 1: Write the proportion equation
177.51 : 245.08 = 135.99 : x - Step 2: Convert to fraction form
177.51/245.08 = 135.99/x - Step 3: Cross multiply
177.51x = 245.08 × 135.99 - Step 4: Simplify right side
177.51x = 33,328.60 - Step 5: Solve for x
x = 33,328.60/177.51 - Step 6: Final answer
x = 187.75
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.