Finding the Fourth Proportional to 409,620.70, 565,279.36 and 228,344.14
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Solution
The fourth proportional to 409,620.70, 565,279.36 and 228,344.14 is: 315,116.47
Step by Step Solution
- Step 1: Write the proportion equation
409,620.70 : 565,279.36 = 228,344.14 : x - Step 2: Convert to fraction form
409,620.70/565,279.36 = 228,344.14/x - Step 3: Cross multiply
409,620.70x = 565,279.36 × 228,344.14 - Step 4: Simplify right side
409,620.70x = 129,078,229,318.95 - Step 5: Solve for x
x = 129,078,229,318.95/409,620.70 - Step 6: Final answer
x = 315,116.47
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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.