Finding the Fourth Proportional to 396,937.05, 547,775.76 and 215,648.94
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Solution
The fourth proportional to 396,937.05, 547,775.76 and 215,648.94 is: 297,596.97
Step by Step Solution
- Step 1: Write the proportion equation
396,937.05 : 547,775.76 = 215,648.94 : x - Step 2: Convert to fraction form
396,937.05/547,775.76 = 215,648.94/x - Step 3: Cross multiply
396,937.05x = 547,775.76 × 215,648.94 - Step 4: Simplify right side
396,937.05x = 118,127,262,001.69 - Step 5: Solve for x
x = 118,127,262,001.69/396,937.05 - Step 6: Final answer
x = 297,596.97
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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.