Finding the Fourth Proportional to 396,941.16, 547,769.30 and 215,649.12
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Solution
The fourth proportional to 396,941.16, 547,769.30 and 215,649.12 is: 297,590.62
Step by Step Solution
- Step 1: Write the proportion equation
396,941.16 : 547,769.30 = 215,649.12 : x - Step 2: Convert to fraction form
396,941.16/547,769.30 = 215,649.12/x - Step 3: Cross multiply
396,941.16x = 547,769.30 × 215,649.12 - Step 4: Simplify right side
396,941.16x = 118,125,967,508.02 - Step 5: Solve for x
x = 118,125,967,508.02/396,941.16 - Step 6: Final answer
x = 297,590.62
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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.