Finding the Fourth Proportional to 216,763.09, 299,144.69 and 121,264.09
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Solution
The fourth proportional to 216,763.09, 299,144.69 and 121,264.09 is: 167,350.95
Step by Step Solution
- Step 1: Write the proportion equation
216,763.09 : 299,144.69 = 121,264.09 : x - Step 2: Convert to fraction form
216,763.09/299,144.69 = 121,264.09/x - Step 3: Cross multiply
216,763.09x = 299,144.69 × 121,264.09 - Step 4: Simplify right side
216,763.09x = 36,275,508,004.86 - Step 5: Solve for x
x = 36,275,508,004.86/216,763.09 - Step 6: Final answer
x = 167,350.95
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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.