Finding the Fourth Proportional to 207,188.16, 310,737.26 and 74,077.60
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Solution
The fourth proportional to 207,188.16, 310,737.26 and 74,077.60 is: 111,100.32
Step by Step Solution
- Step 1: Write the proportion equation
207,188.16 : 310,737.26 = 74,077.60 : x - Step 2: Convert to fraction form
207,188.16/310,737.26 = 74,077.60/x - Step 3: Cross multiply
207,188.16x = 310,737.26 × 74,077.60 - Step 4: Simplify right side
207,188.16x = 23,018,670,451.38 - Step 5: Solve for x
x = 23,018,670,451.38/207,188.16 - Step 6: Final answer
x = 111,100.32
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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.