Finding the Fourth Proportional to 431,658.97, 646,934.34 and 206,682.28
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Solution
The fourth proportional to 431,658.97, 646,934.34 and 206,682.28 is: 309,758.11
Step by Step Solution
- Step 1: Write the proportion equation
431,658.97 : 646,934.34 = 206,682.28 : x - Step 2: Convert to fraction form
431,658.97/646,934.34 = 206,682.28/x - Step 3: Cross multiply
431,658.97x = 646,934.34 × 206,682.28 - Step 4: Simplify right side
431,658.97x = 133,709,867,198.22 - Step 5: Solve for x
x = 133,709,867,198.22/431,658.97 - Step 6: Final answer
x = 309,758.11
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.