Finding the Fourth Proportional to 313,375.90, 432,458.74 and 170,135.96
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Solution
The fourth proportional to 313,375.90, 432,458.74 and 170,135.96 is: 234,787.62
Step by Step Solution
- Step 1: Write the proportion equation
313,375.90 : 432,458.74 = 170,135.96 : x - Step 2: Convert to fraction form
313,375.90/432,458.74 = 170,135.96/x - Step 3: Cross multiply
313,375.90x = 432,458.74 × 170,135.96 - Step 4: Simplify right side
313,375.90x = 73,576,782,890.29 - Step 5: Solve for x
x = 73,576,782,890.29/313,375.90 - Step 6: Final answer
x = 234,787.62
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1.5x scale
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.