Finding the Fourth Proportional to 416,297.19, 574,490.12 and 225,310.59
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Solution
The fourth proportional to 416,297.19, 574,490.12 and 225,310.59 is: 310,928.61
Step by Step Solution
- Step 1: Write the proportion equation
416,297.19 : 574,490.12 = 225,310.59 : x - Step 2: Convert to fraction form
416,297.19/574,490.12 = 225,310.59/x - Step 3: Cross multiply
416,297.19x = 574,490.12 × 225,310.59 - Step 4: Simplify right side
416,297.19x = 129,438,706,759.82 - Step 5: Solve for x
x = 129,438,706,759.82/416,297.19 - Step 6: Final answer
x = 310,928.61
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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.