Finding the Fourth Proportional to 393.44, 590.40 and 149.99
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Solution
The fourth proportional to 393.44, 590.40 and 149.99 is: 225.07
Step by Step Solution
- Step 1: Write the proportion equation
393.44 : 590.40 = 149.99 : x - Step 2: Convert to fraction form
393.44/590.40 = 149.99/x - Step 3: Cross multiply
393.44x = 590.40 × 149.99 - Step 4: Simplify right side
393.44x = 88,551.14 - Step 5: Solve for x
x = 88,551.14/393.44 - Step 6: Final answer
x = 225.07
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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.