Finding the Fourth Proportional to 438,102.60, 657,153.90 and 201,906.60
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Solution
The fourth proportional to 438,102.60, 657,153.90 and 201,906.60 is: 302,859.90
Step by Step Solution
- Step 1: Write the proportion equation
438,102.60 : 657,153.90 = 201,906.60 : x - Step 2: Convert to fraction form
438,102.60/657,153.90 = 201,906.60/x - Step 3: Cross multiply
438,102.60x = 657,153.90 × 201,906.60 - Step 4: Simplify right side
438,102.60x = 132,683,709,625.74 - Step 5: Solve for x
x = 132,683,709,625.74/438,102.60 - Step 6: Final answer
x = 302,859.90
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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.