Finding the Fourth Proportional to 397,276.12, 548,177.56 and 261,365.04
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Solution
The fourth proportional to 397,276.12, 548,177.56 and 261,365.04 is: 360,641.99
Step by Step Solution
- Step 1: Write the proportion equation
397,276.12 : 548,177.56 = 261,365.04 : x - Step 2: Convert to fraction form
397,276.12/548,177.56 = 261,365.04/x - Step 3: Cross multiply
397,276.12x = 548,177.56 × 261,365.04 - Step 4: Simplify right side
397,276.12x = 143,274,449,896.50 - Step 5: Solve for x
x = 143,274,449,896.50/397,276.12 - Step 6: Final answer
x = 360,641.99
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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.