Finding the Fourth Proportional to 186,890.73, 280,163.41 and 74,543.63
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Solution
The fourth proportional to 186,890.73, 280,163.41 and 74,543.63 is: 111,746.56
Step by Step Solution
- Step 1: Write the proportion equation
186,890.73 : 280,163.41 = 74,543.63 : x - Step 2: Convert to fraction form
186,890.73/280,163.41 = 74,543.63/x - Step 3: Cross multiply
186,890.73x = 280,163.41 × 74,543.63 - Step 4: Simplify right side
186,890.73x = 20,884,395,987.40 - Step 5: Solve for x
x = 20,884,395,987.40/186,890.73 - Step 6: Final answer
x = 111,746.56
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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.