Finding the Fourth Proportional to 280,645.68, 418,921.26 and 245,215.92
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Solution
The fourth proportional to 280,645.68, 418,921.26 and 245,215.92 is: 366,035.07
Step by Step Solution
- Step 1: Write the proportion equation
280,645.68 : 418,921.26 = 245,215.92 : x - Step 2: Convert to fraction form
280,645.68/418,921.26 = 245,215.92/x - Step 3: Cross multiply
280,645.68x = 418,921.26 × 245,215.92 - Step 4: Simplify right side
280,645.68x = 102,726,162,178.46 - Step 5: Solve for x
x = 102,726,162,178.46/280,645.68 - Step 6: Final answer
x = 366,035.07
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.