Finding the Fourth Proportional to 216,942.84, 299,392.20 and 121,443.84
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Solution
The fourth proportional to 216,942.84, 299,392.20 and 121,443.84 is: 167,598.70
Step by Step Solution
- Step 1: Write the proportion equation
216,942.84 : 299,392.20 = 121,443.84 : x - Step 2: Convert to fraction form
216,942.84/299,392.20 = 121,443.84/x - Step 3: Cross multiply
216,942.84x = 299,392.20 × 121,443.84 - Step 4: Simplify right side
216,942.84x = 36,359,338,434.05 - Step 5: Solve for x
x = 36,359,338,434.05/216,942.84 - Step 6: Final answer
x = 167,598.70
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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.