Finding the Fourth Proportional to 217,329.75, 299,916.14 and 126,748.53
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Solution
The fourth proportional to 217,329.75, 299,916.14 and 126,748.53 is: 174,913.60
Step by Step Solution
- Step 1: Write the proportion equation
217,329.75 : 299,916.14 = 126,748.53 : x - Step 2: Convert to fraction form
217,329.75/299,916.14 = 126,748.53/x - Step 3: Cross multiply
217,329.75x = 299,916.14 × 126,748.53 - Step 4: Simplify right side
217,329.75x = 38,013,929,234.53 - Step 5: Solve for x
x = 38,013,929,234.53/217,329.75 - Step 6: Final answer
x = 174,913.60
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1.5x scale
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.