Finding the Fourth Proportional to 371.29, 556.99 and 178.91
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Solution
The fourth proportional to 371.29, 556.99 and 178.91 is: 268.40
Step by Step Solution
- Step 1: Write the proportion equation
371.29 : 556.99 = 178.91 : x - Step 2: Convert to fraction form
371.29/556.99 = 178.91/x - Step 3: Cross multiply
371.29x = 556.99 × 178.91 - Step 4: Simplify right side
371.29x = 99,651.08 - Step 5: Solve for x
x = 99,651.08/371.29 - Step 6: Final answer
x = 268.40
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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.