Finding the Fourth Proportional to 215,823.70, 323,735.55 and 122,511.70
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Solution
The fourth proportional to 215,823.70, 323,735.55 and 122,511.70 is: 183,767.55
Step by Step Solution
- Step 1: Write the proportion equation
215,823.70 : 323,735.55 = 122,511.70 : x - Step 2: Convert to fraction form
215,823.70/323,735.55 = 122,511.70/x - Step 3: Cross multiply
215,823.70x = 323,735.55 × 122,511.70 - Step 4: Simplify right side
215,823.70x = 39,661,392,580.94 - Step 5: Solve for x
x = 39,661,392,580.94/215,823.70 - Step 6: Final answer
x = 183,767.55
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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.