Finding the Fourth Proportional to 409,680.84, 565,313.94 and 228,379.08
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Solution
The fourth proportional to 409,680.84, 565,313.94 and 228,379.08 is: 315,137.70
Step by Step Solution
- Step 1: Write the proportion equation
409,680.84 : 565,313.94 = 228,379.08 : x - Step 2: Convert to fraction form
409,680.84/565,313.94 = 228,379.08/x - Step 3: Cross multiply
409,680.84x = 565,313.94 × 228,379.08 - Step 4: Simplify right side
409,680.84x = 129,105,877,528.38 - Step 5: Solve for x
x = 129,105,877,528.38/409,680.84 - Step 6: Final answer
x = 315,137.70
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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.