Finding the Fourth Proportional to 189,107.22, 260,885.30 and 135,372.64
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Solution
The fourth proportional to 189,107.22, 260,885.30 and 135,372.64 is: 186,755.07
Step by Step Solution
- Step 1: Write the proportion equation
189,107.22 : 260,885.30 = 135,372.64 : x - Step 2: Convert to fraction form
189,107.22/260,885.30 = 135,372.64/x - Step 3: Cross multiply
189,107.22x = 260,885.30 × 135,372.64 - Step 4: Simplify right side
189,107.22x = 35,316,731,798.19 - Step 5: Solve for x
x = 35,316,731,798.19/189,107.22 - Step 6: Final answer
x = 186,755.07
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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.