Finding the Fourth Proportional to 408.99, 614.19 and 272.91
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Solution
The fourth proportional to 408.99, 614.19 and 272.91 is: 409.83
Step by Step Solution
- Step 1: Write the proportion equation
408.99 : 614.19 = 272.91 : x - Step 2: Convert to fraction form
408.99/614.19 = 272.91/x - Step 3: Cross multiply
408.99x = 614.19 × 272.91 - Step 4: Simplify right side
408.99x = 167,617.23 - Step 5: Solve for x
x = 167,617.23/408.99 - Step 6: Final answer
x = 409.83
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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.