Finding the Fourth Proportional to 291,847.80, 437,771.70 and 167,431.80
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Solution
The fourth proportional to 291,847.80, 437,771.70 and 167,431.80 is: 251,147.70
Step by Step Solution
- Step 1: Write the proportion equation
291,847.80 : 437,771.70 = 167,431.80 : x - Step 2: Convert to fraction form
291,847.80/437,771.70 = 167,431.80/x - Step 3: Cross multiply
291,847.80x = 437,771.70 × 167,431.80 - Step 4: Simplify right side
291,847.80x = 73,296,903,720.06 - Step 5: Solve for x
x = 73,296,903,720.06/291,847.80 - Step 6: Final answer
x = 251,147.70
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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.