Finding the Fourth Proportional to 177.63, 266.10 and 138.93
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Solution
The fourth proportional to 177.63, 266.10 and 138.93 is: 208.12
Step by Step Solution
- Step 1: Write the proportion equation
177.63 : 266.10 = 138.93 : x - Step 2: Convert to fraction form
177.63/266.10 = 138.93/x - Step 3: Cross multiply
177.63x = 266.10 × 138.93 - Step 4: Simplify right side
177.63x = 36,967.94 - Step 5: Solve for x
x = 36,967.94/177.63 - Step 6: Final answer
x = 208.12
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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.