Finding the Fourth Proportional to 418.99, 578.19 and 232.49
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Solution
The fourth proportional to 418.99, 578.19 and 232.49 is: 320.82
Step by Step Solution
- Step 1: Write the proportion equation
418.99 : 578.19 = 232.49 : x - Step 2: Convert to fraction form
418.99/578.19 = 232.49/x - Step 3: Cross multiply
418.99x = 578.19 × 232.49 - Step 4: Simplify right side
418.99x = 134,421.15 - Step 5: Solve for x
x = 134,421.15/418.99 - Step 6: Final answer
x = 320.82
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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.