Finding the Fourth Proportional to 226,428.24, 312,446.16 and 130,920.48
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Solution
The fourth proportional to 226,428.24, 312,446.16 and 130,920.48 is: 180,655.92
Step by Step Solution
- Step 1: Write the proportion equation
226,428.24 : 312,446.16 = 130,920.48 : x - Step 2: Convert to fraction form
226,428.24/312,446.16 = 130,920.48/x - Step 3: Cross multiply
226,428.24x = 312,446.16 × 130,920.48 - Step 4: Simplify right side
226,428.24x = 40,905,601,241.36 - Step 5: Solve for x
x = 40,905,601,241.36/226,428.24 - Step 6: Final answer
x = 180,655.92
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1.5x scale
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.