Finding the Fourth Proportional to 190,772.87, 263,212.56 and 122,829.17
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Solution
The fourth proportional to 190,772.87, 263,212.56 and 122,829.17 is: 169,469.48
Step by Step Solution
- Step 1: Write the proportion equation
190,772.87 : 263,212.56 = 122,829.17 : x - Step 2: Convert to fraction form
190,772.87/263,212.56 = 122,829.17/x - Step 3: Cross multiply
190,772.87x = 263,212.56 × 122,829.17 - Step 4: Simplify right side
190,772.87x = 32,330,178,962.31 - Step 5: Solve for x
x = 32,330,178,962.31/190,772.87 - Step 6: Final answer
x = 169,469.48
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.