Finding the Fourth Proportional to 217,551.24, 326,287.88 and 138,430.44
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Solution
The fourth proportional to 217,551.24, 326,287.88 and 138,430.44 is: 207,620.86
Step by Step Solution
- Step 1: Write the proportion equation
217,551.24 : 326,287.88 = 138,430.44 : x - Step 2: Convert to fraction form
217,551.24/326,287.88 = 138,430.44/x - Step 3: Cross multiply
217,551.24x = 326,287.88 × 138,430.44 - Step 4: Simplify right side
217,551.24x = 45,168,174,795.07 - Step 5: Solve for x
x = 45,168,174,795.07/217,551.24 - Step 6: Final answer
x = 207,620.86
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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.