Finding the Fourth Proportional to 217,528.07, 326,278.94 and 129,342.76
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Solution
The fourth proportional to 217,528.07, 326,278.94 and 129,342.76 is: 194,006.31
Step by Step Solution
- Step 1: Write the proportion equation
217,528.07 : 326,278.94 = 129,342.76 : x - Step 2: Convert to fraction form
217,528.07/326,278.94 = 129,342.76/x - Step 3: Cross multiply
217,528.07x = 326,278.94 × 129,342.76 - Step 4: Simplify right side
217,528.07x = 42,201,817,167.06 - Step 5: Solve for x
x = 42,201,817,167.06/217,528.07 - Step 6: Final answer
x = 194,006.31
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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.