Finding the Fourth Proportional to 291,161.64, 401,809.20 and 163,837.20
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Solution
The fourth proportional to 291,161.64, 401,809.20 and 163,837.20 is: 226,098.79
Step by Step Solution
- Step 1: Write the proportion equation
291,161.64 : 401,809.20 = 163,837.20 : x - Step 2: Convert to fraction form
291,161.64/401,809.20 = 163,837.20/x - Step 3: Cross multiply
291,161.64x = 401,809.20 × 163,837.20 - Step 4: Simplify right side
291,161.64x = 65,831,294,262.24 - Step 5: Solve for x
x = 65,831,294,262.24/291,161.64 - Step 6: Final answer
x = 226,098.79
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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.