Finding the Fourth Proportional to 393,460.08, 542,976.60 and 214,615.92
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Solution
The fourth proportional to 393,460.08, 542,976.60 and 214,615.92 is: 296,170.89
Step by Step Solution
- Step 1: Write the proportion equation
393,460.08 : 542,976.60 = 214,615.92 : x - Step 2: Convert to fraction form
393,460.08/542,976.60 = 214,615.92/x - Step 3: Cross multiply
393,460.08x = 542,976.60 × 214,615.92 - Step 4: Simplify right side
393,460.08x = 116,531,422,547.47 - Step 5: Solve for x
x = 116,531,422,547.47/393,460.08 - Step 6: Final answer
x = 296,170.89
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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.