Finding the Fourth Proportional to 310.01, 427.77 and 178.99
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Solution
The fourth proportional to 310.01, 427.77 and 178.99 is: 246.98
Step by Step Solution
- Step 1: Write the proportion equation
310.01 : 427.77 = 178.99 : x - Step 2: Convert to fraction form
310.01/427.77 = 178.99/x - Step 3: Cross multiply
310.01x = 427.77 × 178.99 - Step 4: Simplify right side
310.01x = 76,565.48 - Step 5: Solve for x
x = 76,565.48/310.01 - Step 6: Final answer
x = 246.98
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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.