Finding the Fourth Proportional to 293,821.40, 441,266.70 and 257,079.80
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Solution
The fourth proportional to 293,821.40, 441,266.70 and 257,079.80 is: 386,087.45
Step by Step Solution
- Step 1: Write the proportion equation
293,821.40 : 441,266.70 = 257,079.80 : x - Step 2: Convert to fraction form
293,821.40/441,266.70 = 257,079.80/x - Step 3: Cross multiply
293,821.40x = 441,266.70 × 257,079.80 - Step 4: Simplify right side
293,821.40x = 113,440,754,982.66 - Step 5: Solve for x
x = 113,440,754,982.66/293,821.40 - Step 6: Final answer
x = 386,087.45
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.