Finding the Fourth Proportional to 395,042.13, 545,154.05 and 213,750.06
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Solution
The fourth proportional to 395,042.13, 545,154.05 and 213,750.06 is: 294,972.86
Step by Step Solution
- Step 1: Write the proportion equation
395,042.13 : 545,154.05 = 213,750.06 : x - Step 2: Convert to fraction form
395,042.13/545,154.05 = 213,750.06/x - Step 3: Cross multiply
395,042.13x = 545,154.05 × 213,750.06 - Step 4: Simplify right side
395,042.13x = 116,526,708,184.45 - Step 5: Solve for x
x = 116,526,708,184.45/395,042.13 - Step 6: Final answer
x = 294,972.86
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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.