Finding the Fourth Proportional to 395,306.05, 545,526.75 and 214,021.93
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Solution
The fourth proportional to 395,306.05, 545,526.75 and 214,021.93 is: 295,352.65
Step by Step Solution
- Step 1: Write the proportion equation
395,306.05 : 545,526.75 = 214,021.93 : x - Step 2: Convert to fraction form
395,306.05/545,526.75 = 214,021.93/x - Step 3: Cross multiply
395,306.05x = 545,526.75 × 214,021.93 - Step 4: Simplify right side
395,306.05x = 116,754,687,901.63 - Step 5: Solve for x
x = 116,754,687,901.63/395,306.05 - Step 6: Final answer
x = 295,352.65
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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.