Finding the Fourth Proportional to 313,721.88, 432,934.14 and 170,481.92
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Solution
The fourth proportional to 313,721.88, 432,934.14 and 170,481.92 is: 235,263.92
Step by Step Solution
- Step 1: Write the proportion equation
313,721.88 : 432,934.14 = 170,481.92 : x - Step 2: Convert to fraction form
313,721.88/432,934.14 = 170,481.92/x - Step 3: Cross multiply
313,721.88x = 432,934.14 × 170,481.92 - Step 4: Simplify right side
313,721.88x = 73,807,441,415.90 - Step 5: Solve for x
x = 73,807,441,415.90/313,721.88 - Step 6: Final answer
x = 235,263.92
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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.