Finding the Fourth Proportional to 398,163.15, 549,564.39 and 245,332.26
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Solution
The fourth proportional to 398,163.15, 549,564.39 and 245,332.26 is: 338,619.67
Step by Step Solution
- Step 1: Write the proportion equation
398,163.15 : 549,564.39 = 245,332.26 : x - Step 2: Convert to fraction form
398,163.15/549,564.39 = 245,332.26/x - Step 3: Cross multiply
398,163.15x = 549,564.39 × 245,332.26 - Step 4: Simplify right side
398,163.15x = 134,825,873,814.22 - Step 5: Solve for x
x = 134,825,873,814.22/398,163.15 - Step 6: Final answer
x = 338,619.67
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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.