Finding the Fourth Proportional to 249,697.71, 374,582.12 and 81,163.85
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Solution
The fourth proportional to 249,697.71, 374,582.12 and 81,163.85 is: 121,757.32
Step by Step Solution
- Step 1: Write the proportion equation
249,697.71 : 374,582.12 = 81,163.85 : x - Step 2: Convert to fraction form
249,697.71/374,582.12 = 81,163.85/x - Step 3: Cross multiply
249,697.71x = 374,582.12 × 81,163.85 - Step 4: Simplify right side
249,697.71x = 30,402,524,721.63 - Step 5: Solve for x
x = 30,402,524,721.63/249,697.71 - Step 6: Final answer
x = 121,757.32
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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.