Finding the Fourth Proportional to 243,201.80, 335,621.81 and 134,313.49
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Solution
The fourth proportional to 243,201.80, 335,621.81 and 134,313.49 is: 185,354.45
Step by Step Solution
- Step 1: Write the proportion equation
243,201.80 : 335,621.81 = 134,313.49 : x - Step 2: Convert to fraction form
243,201.80/335,621.81 = 134,313.49/x - Step 3: Cross multiply
243,201.80x = 335,621.81 × 134,313.49 - Step 4: Simplify right side
243,201.80x = 45,078,536,621.22 - Step 5: Solve for x
x = 45,078,536,621.22/243,201.80 - Step 6: Final answer
x = 185,354.45
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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.