Finding the Fourth Proportional to 217,901.43, 326,864.49 and 77,660.07
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Solution
The fourth proportional to 217,901.43, 326,864.49 and 77,660.07 is: 116,494.50
Step by Step Solution
- Step 1: Write the proportion equation
217,901.43 : 326,864.49 = 77,660.07 : x - Step 2: Convert to fraction form
217,901.43/326,864.49 = 77,660.07/x - Step 3: Cross multiply
217,901.43x = 326,864.49 × 77,660.07 - Step 4: Simplify right side
217,901.43x = 25,384,319,173.91 - Step 5: Solve for x
x = 25,384,319,173.91/217,901.43 - Step 6: Final answer
x = 116,494.50
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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.