Finding the Fourth Proportional to 259,455.30, 388,891.35 and 133,046.70
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Solution
The fourth proportional to 259,455.30, 388,891.35 and 133,046.70 is: 199,420.52
Step by Step Solution
- Step 1: Write the proportion equation
259,455.30 : 388,891.35 = 133,046.70 : x - Step 2: Convert to fraction form
259,455.30/388,891.35 = 133,046.70/x - Step 3: Cross multiply
259,455.30x = 388,891.35 × 133,046.70 - Step 4: Simplify right side
259,455.30x = 51,740,710,776.05 - Step 5: Solve for x
x = 51,740,710,776.05/259,455.30 - Step 6: Final answer
x = 199,420.52
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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.