Finding the Fourth Proportional to 354,934.26, 489,820.09 and 201,994.45
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Solution
The fourth proportional to 354,934.26, 489,820.09 and 201,994.45 is: 278,758.49
Step by Step Solution
- Step 1: Write the proportion equation
354,934.26 : 489,820.09 = 201,994.45 : x - Step 2: Convert to fraction form
354,934.26/489,820.09 = 201,994.45/x - Step 3: Cross multiply
354,934.26x = 489,820.09 × 201,994.45 - Step 4: Simplify right side
354,934.26x = 98,940,939,678.50 - Step 5: Solve for x
x = 98,940,939,678.50/354,934.26 - Step 6: Final answer
x = 278,758.49
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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.