Finding the Fourth Proportional to 354,758.49, 489,347.79 and 252,816.62
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Solution
The fourth proportional to 354,758.49, 489,347.79 and 252,816.62 is: 348,730.91
Step by Step Solution
- Step 1: Write the proportion equation
354,758.49 : 489,347.79 = 252,816.62 : x - Step 2: Convert to fraction form
354,758.49/489,347.79 = 252,816.62/x - Step 3: Cross multiply
354,758.49x = 489,347.79 × 252,816.62 - Step 4: Simplify right side
354,758.49x = 123,715,251,825.53 - Step 5: Solve for x
x = 123,715,251,825.53/354,758.49 - Step 6: Final answer
x = 348,730.91
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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.