Finding the Fourth Proportional to 511.61, 767.42 and 194.99
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Solution
The fourth proportional to 511.61, 767.42 and 194.99 is: 292.49
Step by Step Solution
- Step 1: Write the proportion equation
511.61 : 767.42 = 194.99 : x - Step 2: Convert to fraction form
511.61/767.42 = 194.99/x - Step 3: Cross multiply
511.61x = 767.42 × 194.99 - Step 4: Simplify right side
511.61x = 149,638.25 - Step 5: Solve for x
x = 149,638.25/511.61 - Step 6: Final answer
x = 292.49
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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.