Finding the Fourth Proportional to 325,153.80, 487,730.70 and 272,665.80
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Solution
The fourth proportional to 325,153.80, 487,730.70 and 272,665.80 is: 408,998.70
Step by Step Solution
- Step 1: Write the proportion equation
325,153.80 : 487,730.70 = 272,665.80 : x - Step 2: Convert to fraction form
325,153.80/487,730.70 = 272,665.80/x - Step 3: Cross multiply
325,153.80x = 487,730.70 × 272,665.80 - Step 4: Simplify right side
325,153.80x = 132,987,481,500.06 - Step 5: Solve for x
x = 132,987,481,500.06/325,153.80 - Step 6: Final answer
x = 408,998.70
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1.5x scale
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.