Finding the Fourth Proportional to 398,163.36, 549,425.60 and 245,177.12
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Solution
The fourth proportional to 398,163.36, 549,425.60 and 245,177.12 is: 338,319.90
Step by Step Solution
- Step 1: Write the proportion equation
398,163.36 : 549,425.60 = 245,177.12 : x - Step 2: Convert to fraction form
398,163.36/549,425.60 = 245,177.12/x - Step 3: Cross multiply
398,163.36x = 549,425.60 × 245,177.12 - Step 4: Simplify right side
398,163.36x = 134,706,586,262.27 - Step 5: Solve for x
x = 134,706,586,262.27/398,163.36 - Step 6: Final answer
x = 338,319.90
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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.