Finding the Fourth Proportional to 356,631.27, 492,201.50 and 220,708.99
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Solution
The fourth proportional to 356,631.27, 492,201.50 and 220,708.99 is: 304,609.57
Step by Step Solution
- Step 1: Write the proportion equation
356,631.27 : 492,201.50 = 220,708.99 : x - Step 2: Convert to fraction form
356,631.27/492,201.50 = 220,708.99/x - Step 3: Cross multiply
356,631.27x = 492,201.50 × 220,708.99 - Step 4: Simplify right side
356,631.27x = 108,633,294,837.94 - Step 5: Solve for x
x = 108,633,294,837.94/356,631.27 - Step 6: Final answer
x = 304,609.57
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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.