Finding the Fourth Proportional to 362,132.40, 542,982.60 and 221,991.60
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Solution
The fourth proportional to 362,132.40, 542,982.60 and 221,991.60 is: 332,854.99
Step by Step Solution
- Step 1: Write the proportion equation
362,132.40 : 542,982.60 = 221,991.60 : x - Step 2: Convert to fraction form
362,132.40/542,982.60 = 221,991.60/x - Step 3: Cross multiply
362,132.40x = 542,982.60 × 221,991.60 - Step 4: Simplify right side
362,132.40x = 120,537,576,146.16 - Step 5: Solve for x
x = 120,537,576,146.16/362,132.40 - Step 6: Final answer
x = 332,854.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.