Finding the Fourth Proportional to 156,912.40, 235,368.60 and 51,717.70
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Solution
The fourth proportional to 156,912.40, 235,368.60 and 51,717.70 is: 77,576.55
Step by Step Solution
- Step 1: Write the proportion equation
156,912.40 : 235,368.60 = 51,717.70 : x - Step 2: Convert to fraction form
156,912.40/235,368.60 = 51,717.70/x - Step 3: Cross multiply
156,912.40x = 235,368.60 × 51,717.70 - Step 4: Simplify right side
156,912.40x = 12,172,722,644.22 - Step 5: Solve for x
x = 12,172,722,644.22/156,912.40 - Step 6: Final answer
x = 77,576.55
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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.