Finding the Fourth Proportional to 217,076.46, 299,711.79 and 135,528.99
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Solution
The fourth proportional to 217,076.46, 299,711.79 and 135,528.99 is: 187,121.33
Step by Step Solution
- Step 1: Write the proportion equation
217,076.46 : 299,711.79 = 135,528.99 : x - Step 2: Convert to fraction form
217,076.46/299,711.79 = 135,528.99/x - Step 3: Cross multiply
217,076.46x = 299,711.79 × 135,528.99 - Step 4: Simplify right side
217,076.46x = 40,619,636,189.79 - Step 5: Solve for x
x = 40,619,636,189.79/217,076.46 - Step 6: Final answer
x = 187,121.33
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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.