Finding the Fourth Proportional to 326,707.18, 450,514.11 and 258,615.34
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Solution
The fourth proportional to 326,707.18, 450,514.11 and 258,615.34 is: 356,618.61
Step by Step Solution
- Step 1: Write the proportion equation
326,707.18 : 450,514.11 = 258,615.34 : x - Step 2: Convert to fraction form
326,707.18/450,514.11 = 258,615.34/x - Step 3: Cross multiply
326,707.18x = 450,514.11 × 258,615.34 - Step 4: Simplify right side
326,707.18x = 116,509,859,732.45 - Step 5: Solve for x
x = 116,509,859,732.45/326,707.18 - Step 6: Final answer
x = 356,618.61
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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.