Finding the Fourth Proportional to 431,279.60, 647,149.80 and 194,658.80
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Solution
The fourth proportional to 431,279.60, 647,149.80 and 194,658.80 is: 292,092.19
Step by Step Solution
- Step 1: Write the proportion equation
431,279.60 : 647,149.80 = 194,658.80 : x - Step 2: Convert to fraction form
431,279.60/647,149.80 = 194,658.80/x - Step 3: Cross multiply
431,279.60x = 647,149.80 × 194,658.80 - Step 4: Simplify right side
431,279.60x = 125,973,403,488.24 - Step 5: Solve for x
x = 125,973,403,488.24/431,279.60 - Step 6: Final answer
x = 292,092.19
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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.