Finding the Fourth Proportional to 354,456.10, 489,129.96 and 201,473.02
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Solution
The fourth proportional to 354,456.10, 489,129.96 and 201,473.02 is: 278,021.71
Step by Step Solution
- Step 1: Write the proportion equation
354,456.10 : 489,129.96 = 201,473.02 : x - Step 2: Convert to fraction form
354,456.10/489,129.96 = 201,473.02/x - Step 3: Cross multiply
354,456.10x = 489,129.96 × 201,473.02 - Step 4: Simplify right side
354,456.10x = 98,546,490,213.68 - Step 5: Solve for x
x = 98,546,490,213.68/354,456.10 - Step 6: Final answer
x = 278,021.71
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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.