Finding the Fourth Proportional to 261,570.23, 392,358.99 and 74,581.73
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Solution
The fourth proportional to 261,570.23, 392,358.99 and 74,581.73 is: 111,873.63
Step by Step Solution
- Step 1: Write the proportion equation
261,570.23 : 392,358.99 = 74,581.73 : x - Step 2: Convert to fraction form
261,570.23/392,358.99 = 74,581.73/x - Step 3: Cross multiply
261,570.23x = 392,358.99 × 74,581.73 - Step 4: Simplify right side
261,570.23x = 29,262,812,255.25 - Step 5: Solve for x
x = 29,262,812,255.25/261,570.23 - Step 6: Final answer
x = 111,873.63
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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.