Finding the Fourth Proportional to 263,390.15, 363,479.37 and 142,531.42
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Solution
The fourth proportional to 263,390.15, 363,479.37 and 142,531.42 is: 196,693.88
Step by Step Solution
- Step 1: Write the proportion equation
263,390.15 : 363,479.37 = 142,531.42 : x - Step 2: Convert to fraction form
263,390.15/363,479.37 = 142,531.42/x - Step 3: Cross multiply
263,390.15x = 363,479.37 × 142,531.42 - Step 4: Simplify right side
263,390.15x = 51,807,230,746.81 - Step 5: Solve for x
x = 51,807,230,746.81/263,390.15 - Step 6: Final answer
x = 196,693.88
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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.