Finding the Fourth Proportional to 261,513.12, 392,335.56 and 74,524.08
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Solution
The fourth proportional to 261,513.12, 392,335.56 and 74,524.08 is: 111,804.89
Step by Step Solution
- Step 1: Write the proportion equation
261,513.12 : 392,335.56 = 74,524.08 : x - Step 2: Convert to fraction form
261,513.12/392,335.56 = 74,524.08/x - Step 3: Cross multiply
261,513.12x = 392,335.56 × 74,524.08 - Step 4: Simplify right side
261,513.12x = 29,238,446,660.28 - Step 5: Solve for x
x = 29,238,446,660.28/261,513.12 - Step 6: Final answer
x = 111,804.89
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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.