Finding the Fourth Proportional to 513.65, 770.47 and 166.99
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Solution
The fourth proportional to 513.65, 770.47 and 166.99 is: 250.48
Step by Step Solution
- Step 1: Write the proportion equation
513.65 : 770.47 = 166.99 : x - Step 2: Convert to fraction form
513.65/770.47 = 166.99/x - Step 3: Cross multiply
513.65x = 770.47 × 166.99 - Step 4: Simplify right side
513.65x = 128,660.79 - Step 5: Solve for x
x = 128,660.79/513.65 - Step 6: Final answer
x = 250.48
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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.