Finding the Fourth Proportional to 415,989.53, 624,077.64 and 131,697.08
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Solution
The fourth proportional to 415,989.53, 624,077.64 and 131,697.08 is: 197,575.17
Step by Step Solution
- Step 1: Write the proportion equation
415,989.53 : 624,077.64 = 131,697.08 : x - Step 2: Convert to fraction form
415,989.53/624,077.64 = 131,697.08/x - Step 3: Cross multiply
415,989.53x = 624,077.64 × 131,697.08 - Step 4: Simplify right side
415,989.53x = 82,189,202,881.29 - Step 5: Solve for x
x = 82,189,202,881.29/415,989.53 - Step 6: Final answer
x = 197,575.17
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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.