Finding the Fourth Proportional to 289,352.61, 434,028.97 and 120,780.98
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Solution
The fourth proportional to 289,352.61, 434,028.97 and 120,780.98 is: 181,171.49
Step by Step Solution
- Step 1: Write the proportion equation
289,352.61 : 434,028.97 = 120,780.98 : x - Step 2: Convert to fraction form
289,352.61/434,028.97 = 120,780.98/x - Step 3: Cross multiply
289,352.61x = 434,028.97 × 120,780.98 - Step 4: Simplify right side
289,352.61x = 52,422,444,344.99 - Step 5: Solve for x
x = 52,422,444,344.99/289,352.61 - Step 6: Final answer
x = 181,171.49
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1.5x scale
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.