Finding the Fourth Proportional to 291,230.21, 401,803.87 and 163,881.20
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Solution
The fourth proportional to 291,230.21, 401,803.87 and 163,881.20 is: 226,103.26
Step by Step Solution
- Step 1: Write the proportion equation
291,230.21 : 401,803.87 = 163,881.20 : x - Step 2: Convert to fraction form
291,230.21/401,803.87 = 163,881.20/x - Step 3: Cross multiply
291,230.21x = 401,803.87 × 163,881.20 - Step 4: Simplify right side
291,230.21x = 65,848,100,380.24 - Step 5: Solve for x
x = 65,848,100,380.24/291,230.21 - Step 6: Final answer
x = 226,103.26
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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.