Finding the Fourth Proportional to 416,420.10, 574,659.09 and 225,433.44
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Solution
The fourth proportional to 416,420.10, 574,659.09 and 225,433.44 is: 311,097.80
Step by Step Solution
- Step 1: Write the proportion equation
416,420.10 : 574,659.09 = 225,433.44 : x - Step 2: Convert to fraction form
416,420.10/574,659.09 = 225,433.44/x - Step 3: Cross multiply
416,420.10x = 574,659.09 × 225,433.44 - Step 4: Simplify right side
416,420.10x = 129,547,375,485.97 - Step 5: Solve for x
x = 129,547,375,485.97/416,420.10 - Step 6: Final answer
x = 311,097.80
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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.