Finding the Fourth Proportional to 681, 939.80 and 370.52
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Solution
The fourth proportional to 681, 939.80 and 370.52 is: 511.33
Step by Step Solution
- Step 1: Write the proportion equation
681 : 939.80 = 370.52 : x - Step 2: Convert to fraction form
681/939.80 = 370.52/x - Step 3: Cross multiply
681x = 939.80 × 370.52 - Step 4: Simplify right side
681x = 348,214.70 - Step 5: Solve for x
x = 348,214.70/681 - Step 6: Final answer
x = 511.33
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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.