Finding the Fourth Proportional to 387,396.47, 580,761.87 and 134,644.14
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Solution
The fourth proportional to 387,396.47, 580,761.87 and 134,644.14 is: 201,850.53
Step by Step Solution
- Step 1: Write the proportion equation
387,396.47 : 580,761.87 = 134,644.14 : x - Step 2: Convert to fraction form
387,396.47/580,761.87 = 134,644.14/x - Step 3: Cross multiply
387,396.47x = 580,761.87 × 134,644.14 - Step 4: Simplify right side
387,396.47x = 78,196,182,026.03 - Step 5: Solve for x
x = 78,196,182,026.03/387,396.47 - Step 6: Final answer
x = 201,850.53
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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.