Finding the Fourth Proportional to 354,754.56, 489,572.70 and 201,788.80
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Solution
The fourth proportional to 354,754.56, 489,572.70 and 201,788.80 is: 278,475.03
Step by Step Solution
- Step 1: Write the proportion equation
354,754.56 : 489,572.70 = 201,788.80 : x - Step 2: Convert to fraction form
354,754.56/489,572.70 = 201,788.80/x - Step 3: Cross multiply
354,754.56x = 489,572.70 × 201,788.80 - Step 4: Simplify right side
354,754.56x = 98,790,287,645.76 - Step 5: Solve for x
x = 98,790,287,645.76/354,754.56 - Step 6: Final answer
x = 278,475.03
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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.