Finding the Fourth Proportional to 284,197.16, 392,195.36 and 156,872.88
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Solution
The fourth proportional to 284,197.16, 392,195.36 and 156,872.88 is: 216,486.38
Step by Step Solution
- Step 1: Write the proportion equation
284,197.16 : 392,195.36 = 156,872.88 : x - Step 2: Convert to fraction form
284,197.16/392,195.36 = 156,872.88/x - Step 3: Cross multiply
284,197.16x = 392,195.36 × 156,872.88 - Step 4: Simplify right side
284,197.16x = 61,524,815,645.84 - Step 5: Solve for x
x = 61,524,815,645.84/284,197.16 - Step 6: Final answer
x = 216,486.38
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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.