Finding the Fourth Proportional to 408.03, 611.97 and 339.99
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Solution
The fourth proportional to 408.03, 611.97 and 339.99 is: 509.92
Step by Step Solution
- Step 1: Write the proportion equation
408.03 : 611.97 = 339.99 : x - Step 2: Convert to fraction form
408.03/611.97 = 339.99/x - Step 3: Cross multiply
408.03x = 611.97 × 339.99 - Step 4: Simplify right side
408.03x = 208,063.68 - Step 5: Solve for x
x = 208,063.68/408.03 - Step 6: Final answer
x = 509.92
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.