Finding the Fourth Proportional to 486,083.40, 727,958.70 and 236,473.80
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Solution
The fourth proportional to 486,083.40, 727,958.70 and 236,473.80 is: 354,143.26
Step by Step Solution
- Step 1: Write the proportion equation
486,083.40 : 727,958.70 = 236,473.80 : x - Step 2: Convert to fraction form
486,083.40/727,958.70 = 236,473.80/x - Step 3: Cross multiply
486,083.40x = 727,958.70 × 236,473.80 - Step 4: Simplify right side
486,083.40x = 172,143,160,032.06 - Step 5: Solve for x
x = 172,143,160,032.06/486,083.40 - Step 6: Final answer
x = 354,143.26
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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.