Finding the Fourth Proportional to 285,311.80, 427,967.70 and 202,367.80
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Solution
The fourth proportional to 285,311.80, 427,967.70 and 202,367.80 is: 303,551.70
Step by Step Solution
- Step 1: Write the proportion equation
285,311.80 : 427,967.70 = 202,367.80 : x - Step 2: Convert to fraction form
285,311.80/427,967.70 = 202,367.80/x - Step 3: Cross multiply
285,311.80x = 427,967.70 × 202,367.80 - Step 4: Simplify right side
285,311.80x = 86,606,881,920.06 - Step 5: Solve for x
x = 86,606,881,920.06/285,311.80 - Step 6: Final answer
x = 303,551.70
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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.