Finding the Fourth Proportional to 354,563.56, 489,320.85 and 201,615.99
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Solution
The fourth proportional to 354,563.56, 489,320.85 and 201,615.99 is: 278,243.22
Step by Step Solution
- Step 1: Write the proportion equation
354,563.56 : 489,320.85 = 201,615.99 : x - Step 2: Convert to fraction form
354,563.56/489,320.85 = 201,615.99/x - Step 3: Cross multiply
354,563.56x = 489,320.85 × 201,615.99 - Step 4: Simplify right side
354,563.56x = 98,654,905,387.41 - Step 5: Solve for x
x = 98,654,905,387.41/354,563.56 - Step 6: Final answer
x = 278,243.22
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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.