Finding the Fourth Proportional to 383,261.19, 528,783.36 and 222,085.09
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Solution
The fourth proportional to 383,261.19, 528,783.36 and 222,085.09 is: 306,409.58
Step by Step Solution
- Step 1: Write the proportion equation
383,261.19 : 528,783.36 = 222,085.09 : x - Step 2: Convert to fraction form
383,261.19/528,783.36 = 222,085.09/x - Step 3: Cross multiply
383,261.19x = 528,783.36 × 222,085.09 - Step 4: Simplify right side
383,261.19x = 117,434,900,096.10 - Step 5: Solve for x
x = 117,434,900,096.10/383,261.19 - Step 6: Final answer
x = 306,409.58
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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.