Finding the Fourth Proportional to 289,633.51, 399,552.21 and 251,339.31
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Solution
The fourth proportional to 289,633.51, 399,552.21 and 251,339.31 is: 346,724.99
Step by Step Solution
- Step 1: Write the proportion equation
289,633.51 : 399,552.21 = 251,339.31 : x - Step 2: Convert to fraction form
289,633.51/399,552.21 = 251,339.31/x - Step 3: Cross multiply
289,633.51x = 399,552.21 × 251,339.31 - Step 4: Simplify right side
289,633.51x = 100,423,176,770.38 - Step 5: Solve for x
x = 100,423,176,770.38/289,633.51 - Step 6: Final answer
x = 346,724.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.