Finding the Fourth Proportional to 310.13, 427.99 and 177.36
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Solution
The fourth proportional to 310.13, 427.99 and 177.36 is: 244.77
Step by Step Solution
- Step 1: Write the proportion equation
310.13 : 427.99 = 177.36 : x - Step 2: Convert to fraction form
310.13/427.99 = 177.36/x - Step 3: Cross multiply
310.13x = 427.99 × 177.36 - Step 4: Simplify right side
310.13x = 75,908.31 - Step 5: Solve for x
x = 75,908.31/310.13 - Step 6: Final answer
x = 244.77
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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.