Finding the Fourth Proportional to 447,387.18, 617,394.30 and 246,183.18
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Solution
The fourth proportional to 447,387.18, 617,394.30 and 246,183.18 is: 339,732.78
Step by Step Solution
- Step 1: Write the proportion equation
447,387.18 : 617,394.30 = 246,183.18 : x - Step 2: Convert to fraction form
447,387.18/617,394.30 = 246,183.18/x - Step 3: Cross multiply
447,387.18x = 617,394.30 × 246,183.18 - Step 4: Simplify right side
447,387.18x = 151,992,092,087.87 - Step 5: Solve for x
x = 151,992,092,087.87/447,387.18 - Step 6: Final answer
x = 339,732.78
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1.5x scale
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.