Finding the Fourth Proportional to 231,928.71, 317,663.47 and 218,310.99
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Solution
The fourth proportional to 231,928.71, 317,663.47 and 218,310.99 is: 299,011.82
Step by Step Solution
- Step 1: Write the proportion equation
231,928.71 : 317,663.47 = 218,310.99 : x - Step 2: Convert to fraction form
231,928.71/317,663.47 = 218,310.99/x - Step 3: Cross multiply
231,928.71x = 317,663.47 × 218,310.99 - Step 4: Simplify right side
231,928.71x = 69,349,426,076.76 - Step 5: Solve for x
x = 69,349,426,076.76/231,928.71 - Step 6: Final answer
x = 299,011.82
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.