Finding the Fourth Proportional to 217,182.36, 299,723.94 and 121,719.84
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Solution
The fourth proportional to 217,182.36, 299,723.94 and 121,719.84 is: 167,980.26
Step by Step Solution
- Step 1: Write the proportion equation
217,182.36 : 299,723.94 = 121,719.84 : x - Step 2: Convert to fraction form
217,182.36/299,723.94 = 121,719.84/x - Step 3: Cross multiply
217,182.36x = 299,723.94 × 121,719.84 - Step 4: Simplify right side
217,182.36x = 36,482,350,020.97 - Step 5: Solve for x
x = 36,482,350,020.97/217,182.36 - Step 6: Final answer
x = 167,980.26
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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.