Finding the Fourth Proportional to 258,456.79, 387,634.07 and 245,640.13
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Solution
The fourth proportional to 258,456.79, 387,634.07 and 245,640.13 is: 368,411.61
Step by Step Solution
- Step 1: Write the proportion equation
258,456.79 : 387,634.07 = 245,640.13 : x - Step 2: Convert to fraction form
258,456.79/387,634.07 = 245,640.13/x - Step 3: Cross multiply
258,456.79x = 387,634.07 × 245,640.13 - Step 4: Simplify right side
258,456.79x = 95,218,482,992.24 - Step 5: Solve for x
x = 95,218,482,992.24/258,456.79 - Step 6: Final answer
x = 368,411.61
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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.