Finding the Fourth Proportional to 395,047.13, 545,160.95 and 213,755.06
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Solution
The fourth proportional to 395,047.13, 545,160.95 and 213,755.06 is: 294,979.77
Step by Step Solution
- Step 1: Write the proportion equation
395,047.13 : 545,160.95 = 213,755.06 : x - Step 2: Convert to fraction form
395,047.13/545,160.95 = 213,755.06/x - Step 3: Cross multiply
395,047.13x = 545,160.95 × 213,755.06 - Step 4: Simplify right side
395,047.13x = 116,530,911,576.91 - Step 5: Solve for x
x = 116,530,911,576.91/395,047.13 - Step 6: Final answer
x = 294,979.77
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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.