Finding the Fourth Proportional to 280,442.41, 420,752.13 and 213,296.09
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Solution
The fourth proportional to 280,442.41, 420,752.13 and 213,296.09 is: 320,011.46
Step by Step Solution
- Step 1: Write the proportion equation
280,442.41 : 420,752.13 = 213,296.09 : x - Step 2: Convert to fraction form
280,442.41/420,752.13 = 213,296.09/x - Step 3: Cross multiply
280,442.41x = 420,752.13 × 213,296.09 - Step 4: Simplify right side
280,442.41x = 89,744,784,188.17 - Step 5: Solve for x
x = 89,744,784,188.17/280,442.41 - Step 6: Final answer
x = 320,011.46
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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.