Finding the Fourth Proportional to 331,489.36, 497,310.51 and 103,772.03
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Solution
The fourth proportional to 331,489.36, 497,310.51 and 103,772.03 is: 155,681.99
Step by Step Solution
- Step 1: Write the proportion equation
331,489.36 : 497,310.51 = 103,772.03 : x - Step 2: Convert to fraction form
331,489.36/497,310.51 = 103,772.03/x - Step 3: Cross multiply
331,489.36x = 497,310.51 × 103,772.03 - Step 4: Simplify right side
331,489.36x = 51,606,921,163.04 - Step 5: Solve for x
x = 51,606,921,163.04/331,489.36 - Step 6: Final answer
x = 155,681.99
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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.