Finding the Fourth Proportional to 397,859.39, 549,052.97 and 216,576.53
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Solution
The fourth proportional to 397,859.39, 549,052.97 and 216,576.53 is: 298,879.43
Step by Step Solution
- Step 1: Write the proportion equation
397,859.39 : 549,052.97 = 216,576.53 : x - Step 2: Convert to fraction form
397,859.39/549,052.97 = 216,576.53/x - Step 3: Cross multiply
397,859.39x = 549,052.97 × 216,576.53 - Step 4: Simplify right side
397,859.39x = 118,911,987,028.79 - Step 5: Solve for x
x = 118,911,987,028.79/397,859.39 - Step 6: Final answer
x = 298,879.43
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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.