Finding the Fourth Proportional to 397,328.99, 548,320.85 and 216,042.14
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Solution
The fourth proportional to 397,328.99, 548,320.85 and 216,042.14 is: 298,141.88
Step by Step Solution
- Step 1: Write the proportion equation
397,328.99 : 548,320.85 = 216,042.14 : x - Step 2: Convert to fraction form
397,328.99/548,320.85 = 216,042.14/x - Step 3: Cross multiply
397,328.99x = 548,320.85 × 216,042.14 - Step 4: Simplify right side
397,328.99x = 118,460,412,156.61 - Step 5: Solve for x
x = 118,460,412,156.61/397,328.99 - Step 6: Final answer
x = 298,141.88
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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.