Finding the Fourth Proportional to 201,717.20, 302,575.80 and 122,985.20
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Solution
The fourth proportional to 201,717.20, 302,575.80 and 122,985.20 is: 184,477.80
Step by Step Solution
- Step 1: Write the proportion equation
201,717.20 : 302,575.80 = 122,985.20 : x - Step 2: Convert to fraction form
201,717.20/302,575.80 = 122,985.20/x - Step 3: Cross multiply
201,717.20x = 302,575.80 × 122,985.20 - Step 4: Simplify right side
201,717.20x = 37,212,345,278.16 - Step 5: Solve for x
x = 37,212,345,278.16/201,717.20 - Step 6: Final answer
x = 184,477.80
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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.