Finding the Fourth Proportional to 354,451.34, 489,171.96 and 201,537.51
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Solution
The fourth proportional to 354,451.34, 489,171.96 and 201,537.51 is: 278,138.32
Step by Step Solution
- Step 1: Write the proportion equation
354,451.34 : 489,171.96 = 201,537.51 : x - Step 2: Convert to fraction form
354,451.34/489,171.96 = 201,537.51/x - Step 3: Cross multiply
354,451.34x = 489,171.96 × 201,537.51 - Step 4: Simplify right side
354,451.34x = 98,586,498,780.22 - Step 5: Solve for x
x = 98,586,498,780.22/354,451.34 - Step 6: Final answer
x = 278,138.32
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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.