Finding the Fourth Proportional to 387,205.68, 580,837.68 and 106,720.50
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Solution
The fourth proportional to 387,205.68, 580,837.68 and 106,720.50 is: 160,088.79
Step by Step Solution
- Step 1: Write the proportion equation
387,205.68 : 580,837.68 = 106,720.50 : x - Step 2: Convert to fraction form
387,205.68/580,837.68 = 106,720.50/x - Step 3: Cross multiply
387,205.68x = 580,837.68 × 106,720.50 - Step 4: Simplify right side
387,205.68x = 61,987,287,628.44 - Step 5: Solve for x
x = 61,987,287,628.44/387,205.68 - Step 6: Final answer
x = 160,088.79
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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.