Finding the Fourth Proportional to 285,337.80, 428,006.70 and 202,393.80
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Solution
The fourth proportional to 285,337.80, 428,006.70 and 202,393.80 is: 303,590.70
Step by Step Solution
- Step 1: Write the proportion equation
285,337.80 : 428,006.70 = 202,393.80 : x - Step 2: Convert to fraction form
285,337.80/428,006.70 = 202,393.80/x - Step 3: Cross multiply
285,337.80x = 428,006.70 × 202,393.80 - Step 4: Simplify right side
285,337.80x = 86,625,902,438.46 - Step 5: Solve for x
x = 86,625,902,438.46/285,337.80 - Step 6: Final answer
x = 303,590.70
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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.