Finding the Fourth Proportional to 351,628.68, 527,440.68 and 85,387.38
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Solution
The fourth proportional to 351,628.68, 527,440.68 and 85,387.38 is: 128,080.50
Step by Step Solution
- Step 1: Write the proportion equation
351,628.68 : 527,440.68 = 85,387.38 : x - Step 2: Convert to fraction form
351,628.68/527,440.68 = 85,387.38/x - Step 3: Cross multiply
351,628.68x = 527,440.68 × 85,387.38 - Step 4: Simplify right side
351,628.68x = 45,036,777,770.62 - Step 5: Solve for x
x = 45,036,777,770.62/351,628.68 - Step 6: Final answer
x = 128,080.50
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.