Finding the Fourth Proportional to 371.30, 556.99 and 178.88
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Solution
The fourth proportional to 371.30, 556.99 and 178.88 is: 268.33
Step by Step Solution
- Step 1: Write the proportion equation
371.30 : 556.99 = 178.88 : x - Step 2: Convert to fraction form
371.30/556.99 = 178.88/x - Step 3: Cross multiply
371.30x = 556.99 × 178.88 - Step 4: Simplify right side
371.30x = 99,631.14 - Step 5: Solve for x
x = 99,631.14/371.30 - Step 6: Final answer
x = 268.33
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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.