Finding the Fourth Proportional to 426,175.26, 639,366.99 and 141,865.26
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Solution
The fourth proportional to 426,175.26, 639,366.99 and 141,865.26 is: 212,832.54
Step by Step Solution
- Step 1: Write the proportion equation
426,175.26 : 639,366.99 = 141,865.26 : x - Step 2: Convert to fraction form
426,175.26/639,366.99 = 141,865.26/x - Step 3: Cross multiply
426,175.26x = 639,366.99 × 141,865.26 - Step 4: Simplify right side
426,175.26x = 90,703,964,271.77 - Step 5: Solve for x
x = 90,703,964,271.77/426,175.26 - Step 6: Final answer
x = 212,832.54
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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.