Finding the Fourth Proportional to 261,880.83, 392,516.57 and 149,639.73
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Solution
The fourth proportional to 261,880.83, 392,516.57 and 149,639.73 is: 224,285.50
Step by Step Solution
- Step 1: Write the proportion equation
261,880.83 : 392,516.57 = 149,639.73 : x - Step 2: Convert to fraction form
261,880.83/392,516.57 = 149,639.73/x - Step 3: Cross multiply
261,880.83x = 392,516.57 × 149,639.73 - Step 4: Simplify right side
261,880.83x = 58,736,072,807.13 - Step 5: Solve for x
x = 58,736,072,807.13/261,880.83 - Step 6: Final answer
x = 224,285.50
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1.5x scale
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.