Finding the Fourth Proportional to 393.24, 590.09 and 149.70
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Solution
The fourth proportional to 393.24, 590.09 and 149.70 is: 224.64
Step by Step Solution
- Step 1: Write the proportion equation
393.24 : 590.09 = 149.70 : x - Step 2: Convert to fraction form
393.24/590.09 = 149.70/x - Step 3: Cross multiply
393.24x = 590.09 × 149.70 - Step 4: Simplify right side
393.24x = 88,335.72 - Step 5: Solve for x
x = 88,335.72/393.24 - Step 6: Final answer
x = 224.64
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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.