Finding the Fourth Proportional to 217,206.56, 299,757.48 and 121,744.10
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Solution
The fourth proportional to 217,206.56, 299,757.48 and 121,744.10 is: 168,013.82
Step by Step Solution
- Step 1: Write the proportion equation
217,206.56 : 299,757.48 = 121,744.10 : x - Step 2: Convert to fraction form
217,206.56/299,757.48 = 121,744.10/x - Step 3: Cross multiply
217,206.56x = 299,757.48 × 121,744.10 - Step 4: Simplify right side
217,206.56x = 36,493,704,620.87 - Step 5: Solve for x
x = 36,493,704,620.87/217,206.56 - Step 6: Final answer
x = 168,013.82
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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.