Finding the Fourth Proportional to 226,043.36, 311,905.20 and 135,378.08
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Solution
The fourth proportional to 226,043.36, 311,905.20 and 135,378.08 is: 186,801.01
Step by Step Solution
- Step 1: Write the proportion equation
226,043.36 : 311,905.20 = 135,378.08 : x - Step 2: Convert to fraction form
226,043.36/311,905.20 = 135,378.08/x - Step 3: Cross multiply
226,043.36x = 311,905.20 × 135,378.08 - Step 4: Simplify right side
226,043.36x = 42,225,127,118.02 - Step 5: Solve for x
x = 42,225,127,118.02/226,043.36 - Step 6: Final answer
x = 186,801.01
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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.