Finding the Fourth Proportional to 426,338.28, 639,131.10 and 173,829.99
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Solution
The fourth proportional to 426,338.28, 639,131.10 and 173,829.99 is: 260,591.55
Step by Step Solution
- Step 1: Write the proportion equation
426,338.28 : 639,131.10 = 173,829.99 : x - Step 2: Convert to fraction form
426,338.28/639,131.10 = 173,829.99/x - Step 3: Cross multiply
426,338.28x = 639,131.10 × 173,829.99 - Step 4: Simplify right side
426,338.28x = 111,100,152,721.69 - Step 5: Solve for x
x = 111,100,152,721.69/426,338.28 - Step 6: Final answer
x = 260,591.55
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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.