Finding the Fourth Proportional to 331,282.78, 457,154.49 and 188,023.75
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Solution
The fourth proportional to 331,282.78, 457,154.49 and 188,023.75 is: 259,463.84
Step by Step Solution
- Step 1: Write the proportion equation
331,282.78 : 457,154.49 = 188,023.75 : x - Step 2: Convert to fraction form
331,282.78/457,154.49 = 188,023.75/x - Step 3: Cross multiply
331,282.78x = 457,154.49 × 188,023.75 - Step 4: Simplify right side
331,282.78x = 85,955,901,539.14 - Step 5: Solve for x
x = 85,955,901,539.14/331,282.78 - Step 6: Final answer
x = 259,463.84
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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.