Finding the Fourth Proportional to 354,403.56, 489,063.24 and 201,461.88
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Solution
The fourth proportional to 354,403.56, 489,063.24 and 201,461.88 is: 278,009.62
Step by Step Solution
- Step 1: Write the proportion equation
354,403.56 : 489,063.24 = 201,461.88 : x - Step 2: Convert to fraction form
354,403.56/489,063.24 = 201,461.88/x - Step 3: Cross multiply
354,403.56x = 489,063.24 × 201,461.88 - Step 4: Simplify right side
354,403.56x = 98,527,599,769.29 - Step 5: Solve for x
x = 98,527,599,769.29/354,403.56 - Step 6: Final answer
x = 278,009.62
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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.