Finding the Fourth Proportional to 395,126.88, 545,275.08 and 213,838.80
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Solution
The fourth proportional to 395,126.88, 545,275.08 and 213,838.80 is: 295,097.54
Step by Step Solution
- Step 1: Write the proportion equation
395,126.88 : 545,275.08 = 213,838.80 : x - Step 2: Convert to fraction form
395,126.88/545,275.08 = 213,838.80/x - Step 3: Cross multiply
395,126.88x = 545,275.08 × 213,838.80 - Step 4: Simplify right side
395,126.88x = 116,600,968,777.10 - Step 5: Solve for x
x = 116,600,968,777.10/395,126.88 - Step 6: Final answer
x = 295,097.54
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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.