Finding the Fourth Proportional to 397,598.11, 548,686.69 and 216,310.00
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Solution
The fourth proportional to 397,598.11, 548,686.69 and 216,310.00 is: 298,508.50
Step by Step Solution
- Step 1: Write the proportion equation
397,598.11 : 548,686.69 = 216,310.00 : x - Step 2: Convert to fraction form
397,598.11/548,686.69 = 216,310.00/x - Step 3: Cross multiply
397,598.11x = 548,686.69 × 216,310.00 - Step 4: Simplify right side
397,598.11x = 118,686,415,170.47 - Step 5: Solve for x
x = 118,686,415,170.47/397,598.11 - Step 6: Final answer
x = 298,508.50
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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.