Finding the Fourth Proportional to 265,782.25, 398,738.99 and 78,793.75
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Solution
The fourth proportional to 265,782.25, 398,738.99 and 78,793.75 is: 118,210.08
Step by Step Solution
- Step 1: Write the proportion equation
265,782.25 : 398,738.99 = 78,793.75 : x - Step 2: Convert to fraction form
265,782.25/398,738.99 = 78,793.75/x - Step 3: Cross multiply
265,782.25x = 398,738.99 × 78,793.75 - Step 4: Simplify right side
265,782.25x = 31,418,140,293.31 - Step 5: Solve for x
x = 31,418,140,293.31/265,782.25 - Step 6: Final answer
x = 118,210.08
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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.