Finding the Fourth Proportional to 208,486.44, 312,756.19 and 56,686.70
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Solution
The fourth proportional to 208,486.44, 312,756.19 and 56,686.70 is: 85,037.27
Step by Step Solution
- Step 1: Write the proportion equation
208,486.44 : 312,756.19 = 56,686.70 : x - Step 2: Convert to fraction form
208,486.44/312,756.19 = 56,686.70/x - Step 3: Cross multiply
208,486.44x = 312,756.19 × 56,686.70 - Step 4: Simplify right side
208,486.44x = 17,729,116,955.85 - Step 5: Solve for x
x = 17,729,116,955.85/208,486.44 - Step 6: Final answer
x = 85,037.27
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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.