Finding the Fourth Proportional to 521,090.21, 781,093.39 and 201,461.60
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Solution
The fourth proportional to 521,090.21, 781,093.39 and 201,461.60 is: 301,982.88
Step by Step Solution
- Step 1: Write the proportion equation
521,090.21 : 781,093.39 = 201,461.60 : x - Step 2: Convert to fraction form
521,090.21/781,093.39 = 201,461.60/x - Step 3: Cross multiply
521,090.21x = 781,093.39 × 201,461.60 - Step 4: Simplify right side
521,090.21x = 157,360,323,462.92 - Step 5: Solve for x
x = 157,360,323,462.92/521,090.21 - Step 6: Final answer
x = 301,982.88
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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.