Finding the Fourth Proportional to 405,450.12, 559,478.34 and 224,132.88
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Solution
The fourth proportional to 405,450.12, 559,478.34 and 224,132.88 is: 309,279.70
Step by Step Solution
- Step 1: Write the proportion equation
405,450.12 : 559,478.34 = 224,132.88 : x - Step 2: Convert to fraction form
405,450.12/559,478.34 = 224,132.88/x - Step 3: Cross multiply
405,450.12x = 559,478.34 × 224,132.88 - Step 4: Simplify right side
405,450.12x = 125,397,491,641.82 - Step 5: Solve for x
x = 125,397,491,641.82/405,450.12 - Step 6: Final answer
x = 309,279.70
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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.