Finding the Fourth Proportional to 205,050.64, 283,147.92 and 128,702.08
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Solution
The fourth proportional to 205,050.64, 283,147.92 and 128,702.08 is: 177,720.62
Step by Step Solution
- Step 1: Write the proportion equation
205,050.64 : 283,147.92 = 128,702.08 : x - Step 2: Convert to fraction form
205,050.64/283,147.92 = 128,702.08/x - Step 3: Cross multiply
205,050.64x = 283,147.92 × 128,702.08 - Step 4: Simplify right side
205,050.64x = 36,441,726,251.67 - Step 5: Solve for x
x = 36,441,726,251.67/205,050.64 - Step 6: Final answer
x = 177,720.62
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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.