Finding the Fourth Proportional to 541.62, 812.43 and 216.99
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Solution
The fourth proportional to 541.62, 812.43 and 216.99 is: 325.49
Step by Step Solution
- Step 1: Write the proportion equation
541.62 : 812.43 = 216.99 : x - Step 2: Convert to fraction form
541.62/812.43 = 216.99/x - Step 3: Cross multiply
541.62x = 812.43 × 216.99 - Step 4: Simplify right side
541.62x = 176,289.19 - Step 5: Solve for x
x = 176,289.19/541.62 - Step 6: Final answer
x = 325.49
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Double scale
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Similar ratio
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1.5x scale
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.