Finding the Fourth Proportional to 447,284.46, 617,236.74 and 243,329.70
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Solution
The fourth proportional to 447,284.46, 617,236.74 and 243,329.70 is: 335,786.38
Step by Step Solution
- Step 1: Write the proportion equation
447,284.46 : 617,236.74 = 243,329.70 : x - Step 2: Convert to fraction form
447,284.46/617,236.74 = 243,329.70/x - Step 3: Cross multiply
447,284.46x = 617,236.74 × 243,329.70 - Step 4: Simplify right side
447,284.46x = 150,192,030,773.18 - Step 5: Solve for x
x = 150,192,030,773.18/447,284.46 - Step 6: Final answer
x = 335,786.38
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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.