Finding the Fourth Proportional to 374.94, 517.55 and 243.99
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Solution
The fourth proportional to 374.94, 517.55 and 243.99 is: 336.79
Step by Step Solution
- Step 1: Write the proportion equation
374.94 : 517.55 = 243.99 : x - Step 2: Convert to fraction form
374.94/517.55 = 243.99/x - Step 3: Cross multiply
374.94x = 517.55 × 243.99 - Step 4: Simplify right side
374.94x = 126,275.80 - Step 5: Solve for x
x = 126,275.80/374.94 - Step 6: Final answer
x = 336.79
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.