Finding the Fourth Proportional to 178.01, 266.99 and 69.87
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Solution
The fourth proportional to 178.01, 266.99 and 69.87 is: 104.80
Step by Step Solution
- Step 1: Write the proportion equation
178.01 : 266.99 = 69.87 : x - Step 2: Convert to fraction form
178.01/266.99 = 69.87/x - Step 3: Cross multiply
178.01x = 266.99 × 69.87 - Step 4: Simplify right side
178.01x = 18,654.24 - Step 5: Solve for x
x = 18,654.24/178.01 - Step 6: Final answer
x = 104.80
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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.