Finding the Fourth Proportional to 354,556.21, 489,366.47 and 225,468.53
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Solution
The fourth proportional to 354,556.21, 489,366.47 and 225,468.53 is: 311,196.75
Step by Step Solution
- Step 1: Write the proportion equation
354,556.21 : 489,366.47 = 225,468.53 : x - Step 2: Convert to fraction form
354,556.21/489,366.47 = 225,468.53/x - Step 3: Cross multiply
354,556.21x = 489,366.47 × 225,468.53 - Step 4: Simplify right side
354,556.21x = 110,336,738,622.19 - Step 5: Solve for x
x = 110,336,738,622.19/354,556.21 - Step 6: Final answer
x = 311,196.75
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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.