Finding the Fourth Proportional to 263,877.75, 395,734.41 and 86,345.19
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Solution
The fourth proportional to 263,877.75, 395,734.41 and 86,345.19 is: 129,490.88
Step by Step Solution
- Step 1: Write the proportion equation
263,877.75 : 395,734.41 = 86,345.19 : x - Step 2: Convert to fraction form
263,877.75/395,734.41 = 86,345.19/x - Step 3: Cross multiply
263,877.75x = 395,734.41 × 86,345.19 - Step 4: Simplify right side
263,877.75x = 34,169,762,820.99 - Step 5: Solve for x
x = 34,169,762,820.99/263,877.75 - Step 6: Final answer
x = 129,490.88
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.