Finding the Fourth Proportional to 314,887.71, 434,299.25 and 218,128.08
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Solution
The fourth proportional to 314,887.71, 434,299.25 and 218,128.08 is: 300,846.49
Step by Step Solution
- Step 1: Write the proportion equation
314,887.71 : 434,299.25 = 218,128.08 : x - Step 2: Convert to fraction form
314,887.71/434,299.25 = 218,128.08/x - Step 3: Cross multiply
314,887.71x = 434,299.25 × 218,128.08 - Step 4: Simplify right side
314,887.71x = 94,732,861,275.28 - Step 5: Solve for x
x = 94,732,861,275.28/314,887.71 - Step 6: Final answer
x = 300,846.49
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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.