Finding the Fourth Proportional to 342,039.70, 513,059.55 and 92,721.70
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Solution
The fourth proportional to 342,039.70, 513,059.55 and 92,721.70 is: 139,082.55
Step by Step Solution
- Step 1: Write the proportion equation
342,039.70 : 513,059.55 = 92,721.70 : x - Step 2: Convert to fraction form
342,039.70/513,059.55 = 92,721.70/x - Step 3: Cross multiply
342,039.70x = 513,059.55 × 92,721.70 - Step 4: Simplify right side
342,039.70x = 47,571,753,677.24 - Step 5: Solve for x
x = 47,571,753,677.24/342,039.70 - Step 6: Final answer
x = 139,082.55
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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.