Finding the Fourth Proportional to 308,913.30, 463,363.11 and 84,269.70
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Solution
The fourth proportional to 308,913.30, 463,363.11 and 84,269.70 is: 126,402.68
Step by Step Solution
- Step 1: Write the proportion equation
308,913.30 : 463,363.11 = 84,269.70 : x - Step 2: Convert to fraction form
308,913.30/463,363.11 = 84,269.70/x - Step 3: Cross multiply
308,913.30x = 463,363.11 × 84,269.70 - Step 4: Simplify right side
308,913.30x = 39,047,470,270.77 - Step 5: Solve for x
x = 39,047,470,270.77/308,913.30 - Step 6: Final answer
x = 126,402.68
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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.