Finding the Fourth Proportional to 354,743.72, 489,557.79 and 201,777.99
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Solution
The fourth proportional to 354,743.72, 489,557.79 and 201,777.99 is: 278,460.14
Step by Step Solution
- Step 1: Write the proportion equation
354,743.72 : 489,557.79 = 201,777.99 : x - Step 2: Convert to fraction form
354,743.72/489,557.79 = 201,777.99/x - Step 3: Cross multiply
354,743.72x = 489,557.79 × 201,777.99 - Step 4: Simplify right side
354,743.72x = 98,781,985,846.15 - Step 5: Solve for x
x = 98,781,985,846.15/354,743.72 - Step 6: Final answer
x = 278,460.14
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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.