Finding the Fourth Proportional to 433.99, 650.99 and 145.43
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Solution
The fourth proportional to 433.99, 650.99 and 145.43 is: 218.15
Step by Step Solution
- Step 1: Write the proportion equation
433.99 : 650.99 = 145.43 : x - Step 2: Convert to fraction form
433.99/650.99 = 145.43/x - Step 3: Cross multiply
433.99x = 650.99 × 145.43 - Step 4: Simplify right side
433.99x = 94,673.48 - Step 5: Solve for x
x = 94,673.48/433.99 - Step 6: Final answer
x = 218.15
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Double scale
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Similar ratio
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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.