Finding the Fourth Proportional to 383,130.79, 528,720.62 and 222,079.26
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Solution
The fourth proportional to 383,130.79, 528,720.62 and 222,079.26 is: 306,469.45
Step by Step Solution
- Step 1: Write the proportion equation
383,130.79 : 528,720.62 = 222,079.26 : x - Step 2: Convert to fraction form
383,130.79/528,720.62 = 222,079.26/x - Step 3: Cross multiply
383,130.79x = 528,720.62 × 222,079.26 - Step 4: Simplify right side
383,130.79x = 117,417,882,245.09 - Step 5: Solve for x
x = 117,417,882,245.09/383,130.79 - Step 6: Final answer
x = 306,469.45
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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.