Finding the Fourth Proportional to 283,614.84, 391,391.16 and 156,295.08
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Solution
The fourth proportional to 283,614.84, 391,391.16 and 156,295.08 is: 215,688.69
Step by Step Solution
- Step 1: Write the proportion equation
283,614.84 : 391,391.16 = 156,295.08 : x - Step 2: Convert to fraction form
283,614.84/391,391.16 = 156,295.08/x - Step 3: Cross multiply
283,614.84x = 391,391.16 × 156,295.08 - Step 4: Simplify right side
283,614.84x = 61,172,512,663.49 - Step 5: Solve for x
x = 61,172,512,663.49/283,614.84 - Step 6: Final answer
x = 215,688.69
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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.