Finding the Fourth Proportional to 393,701.55, 543,308.00 and 214,853.55
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Solution
The fourth proportional to 393,701.55, 543,308.00 and 214,853.55 is: 296,497.82
Step by Step Solution
- Step 1: Write the proportion equation
393,701.55 : 543,308.00 = 214,853.55 : x - Step 2: Convert to fraction form
393,701.55/543,308.00 = 214,853.55/x - Step 3: Cross multiply
393,701.55x = 543,308.00 × 214,853.55 - Step 4: Simplify right side
393,701.55x = 116,731,651,469.13 - Step 5: Solve for x
x = 116,731,651,469.13/393,701.55 - Step 6: Final answer
x = 296,497.82
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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.