Finding the Fourth Proportional to 208,823.70, 313,235.55 and 125,879.70
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Solution
The fourth proportional to 208,823.70, 313,235.55 and 125,879.70 is: 188,819.55
Step by Step Solution
- Step 1: Write the proportion equation
208,823.70 : 313,235.55 = 125,879.70 : x - Step 2: Convert to fraction form
208,823.70/313,235.55 = 125,879.70/x - Step 3: Cross multiply
208,823.70x = 313,235.55 × 125,879.70 - Step 4: Simplify right side
208,823.70x = 39,429,997,063.34 - Step 5: Solve for x
x = 39,429,997,063.34/208,823.70 - Step 6: Final answer
x = 188,819.55
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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.