Finding the Fourth Proportional to 205,801.97, 308,702.96 and 135,664.88
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Solution
The fourth proportional to 205,801.97, 308,702.96 and 135,664.88 is: 203,497.32
Step by Step Solution
- Step 1: Write the proportion equation
205,801.97 : 308,702.96 = 135,664.88 : x - Step 2: Convert to fraction form
205,801.97/308,702.96 = 135,664.88/x - Step 3: Cross multiply
205,801.97x = 308,702.96 × 135,664.88 - Step 4: Simplify right side
205,801.97x = 41,880,149,345.72 - Step 5: Solve for x
x = 41,880,149,345.72/205,801.97 - Step 6: Final answer
x = 203,497.32
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.