Finding the Fourth Proportional to 356,853.87, 492,412.82 and 203,901.98
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Solution
The fourth proportional to 356,853.87, 492,412.82 and 203,901.98 is: 281,358.71
Step by Step Solution
- Step 1: Write the proportion equation
356,853.87 : 492,412.82 = 203,901.98 : x - Step 2: Convert to fraction form
356,853.87/492,412.82 = 203,901.98/x - Step 3: Cross multiply
356,853.87x = 492,412.82 × 203,901.98 - Step 4: Simplify right side
356,853.87x = 100,403,945,493.81 - Step 5: Solve for x
x = 100,403,945,493.81/356,853.87 - Step 6: Final answer
x = 281,358.71
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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.