Finding the Fourth Proportional to 417,696.20, 576,421.41 and 226,709.67
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Solution
The fourth proportional to 417,696.20, 576,421.41 and 226,709.67 is: 312,859.70
Step by Step Solution
- Step 1: Write the proportion equation
417,696.20 : 576,421.41 = 226,709.67 : x - Step 2: Convert to fraction form
417,696.20/576,421.41 = 226,709.67/x - Step 3: Cross multiply
417,696.20x = 576,421.41 × 226,709.67 - Step 4: Simplify right side
417,696.20x = 130,680,307,642.04 - Step 5: Solve for x
x = 130,680,307,642.04/417,696.20 - Step 6: Final answer
x = 312,859.70
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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.