Finding the Fourth Proportional to 415,988.53, 624,076.14 and 131,696.08
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Solution
The fourth proportional to 415,988.53, 624,076.14 and 131,696.08 is: 197,573.67
Step by Step Solution
- Step 1: Write the proportion equation
415,988.53 : 624,076.14 = 131,696.08 : x - Step 2: Convert to fraction form
415,988.53/624,076.14 = 131,696.08/x - Step 3: Cross multiply
415,988.53x = 624,076.14 × 131,696.08 - Step 4: Simplify right side
415,988.53x = 82,188,380,193.20 - Step 5: Solve for x
x = 82,188,380,193.20/415,988.53 - Step 6: Final answer
x = 197,573.67
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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.