Finding the Fourth Proportional to 378,000.06, 521,640.99 and 208,237.02
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Solution
The fourth proportional to 378,000.06, 521,640.99 and 208,237.02 is: 287,367.59
Step by Step Solution
- Step 1: Write the proportion equation
378,000.06 : 521,640.99 = 208,237.02 : x - Step 2: Convert to fraction form
378,000.06/521,640.99 = 208,237.02/x - Step 3: Cross multiply
378,000.06x = 521,640.99 × 208,237.02 - Step 4: Simplify right side
378,000.06x = 108,624,965,267.45 - Step 5: Solve for x
x = 108,624,965,267.45/378,000.06 - Step 6: Final answer
x = 287,367.59
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.