Finding the Fourth Proportional to 208,515.36, 312,773.28 and 50,743.84
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Solution
The fourth proportional to 208,515.36, 312,773.28 and 50,743.84 is: 76,115.82
Step by Step Solution
- Step 1: Write the proportion equation
208,515.36 : 312,773.28 = 50,743.84 : x - Step 2: Convert to fraction form
208,515.36/312,773.28 = 50,743.84/x - Step 3: Cross multiply
208,515.36x = 312,773.28 × 50,743.84 - Step 4: Simplify right side
208,515.36x = 15,871,317,276.60 - Step 5: Solve for x
x = 15,871,317,276.60/208,515.36 - Step 6: Final answer
x = 76,115.82
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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.