Finding the Fourth Proportional to 208,953.60, 313,477.68 and 68,713.44
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Solution
The fourth proportional to 208,953.60, 313,477.68 and 68,713.44 is: 103,085.71
Step by Step Solution
- Step 1: Write the proportion equation
208,953.60 : 313,477.68 = 68,713.44 : x - Step 2: Convert to fraction form
208,953.60/313,477.68 = 68,713.44/x - Step 3: Cross multiply
208,953.60x = 313,477.68 × 68,713.44 - Step 4: Simplify right side
208,953.60x = 21,540,129,756.02 - Step 5: Solve for x
x = 21,540,129,756.02/208,953.60 - Step 6: Final answer
x = 103,085.71
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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.