Finding the Fourth Proportional to 217,035.42, 299,521.33 and 121,541.28
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Solution
The fourth proportional to 217,035.42, 299,521.33 and 121,541.28 is: 167,733.94
Step by Step Solution
- Step 1: Write the proportion equation
217,035.42 : 299,521.33 = 121,541.28 : x - Step 2: Convert to fraction form
217,035.42/299,521.33 = 121,541.28/x - Step 3: Cross multiply
217,035.42x = 299,521.33 × 121,541.28 - Step 4: Simplify right side
217,035.42x = 36,404,207,448.41 - Step 5: Solve for x
x = 36,404,207,448.41/217,035.42 - Step 6: Final answer
x = 167,733.94
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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.