Finding the Fourth Proportional to 243,073.89, 335,441.97 and 134,178.26
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Solution
The fourth proportional to 243,073.89, 335,441.97 and 134,178.26 is: 185,165.99
Step by Step Solution
- Step 1: Write the proportion equation
243,073.89 : 335,441.97 = 134,178.26 : x - Step 2: Convert to fraction form
243,073.89/335,441.97 = 134,178.26/x - Step 3: Cross multiply
243,073.89x = 335,441.97 × 134,178.26 - Step 4: Simplify right side
243,073.89x = 45,009,018,188.36 - Step 5: Solve for x
x = 45,009,018,188.36/243,073.89 - Step 6: Final answer
x = 185,165.99
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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.