Finding the Fourth Proportional to 393.45, 590.19 and 149.99
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Solution
The fourth proportional to 393.45, 590.19 and 149.99 is: 224.99
Step by Step Solution
- Step 1: Write the proportion equation
393.45 : 590.19 = 149.99 : x - Step 2: Convert to fraction form
393.45/590.19 = 149.99/x - Step 3: Cross multiply
393.45x = 590.19 × 149.99 - Step 4: Simplify right side
393.45x = 88,522.22 - Step 5: Solve for x
x = 88,522.22/393.45 - Step 6: Final answer
x = 224.99
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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.