Finding the Fourth Proportional to 319,714.80, 479,572.20 and 224,329.20
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Solution
The fourth proportional to 319,714.80, 479,572.20 and 224,329.20 is: 336,493.80
Step by Step Solution
- Step 1: Write the proportion equation
319,714.80 : 479,572.20 = 224,329.20 : x - Step 2: Convert to fraction form
319,714.80/479,572.20 = 224,329.20/x - Step 3: Cross multiply
319,714.80x = 479,572.20 × 224,329.20 - Step 4: Simplify right side
319,714.80x = 107,582,047,968.24 - Step 5: Solve for x
x = 107,582,047,968.24/319,714.80 - Step 6: Final answer
x = 336,493.80
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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.