Finding the Fourth Proportional to 216,771.84, 299,156.76 and 121,272.84
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Solution
The fourth proportional to 216,771.84, 299,156.76 and 121,272.84 is: 167,363.02
Step by Step Solution
- Step 1: Write the proportion equation
216,771.84 : 299,156.76 = 121,272.84 : x - Step 2: Convert to fraction form
216,771.84/299,156.76 = 121,272.84/x - Step 3: Cross multiply
216,771.84x = 299,156.76 × 121,272.84 - Step 4: Simplify right side
216,771.84x = 36,279,589,890.40 - Step 5: Solve for x
x = 36,279,589,890.40/216,771.84 - Step 6: Final answer
x = 167,363.02
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1.5x scale
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.