Finding the Fourth Proportional to 228,628.24, 343,467.96 and 161,315.20
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Solution
The fourth proportional to 228,628.24, 343,467.96 and 161,315.20 is: 242,343.65
Step by Step Solution
- Step 1: Write the proportion equation
228,628.24 : 343,467.96 = 161,315.20 : x - Step 2: Convert to fraction form
228,628.24/343,467.96 = 161,315.20/x - Step 3: Cross multiply
228,628.24x = 343,467.96 × 161,315.20 - Step 4: Simplify right side
228,628.24x = 55,406,602,660.99 - Step 5: Solve for x
x = 55,406,602,660.99/228,628.24 - Step 6: Final answer
x = 242,343.65
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.