Finding the Fourth Proportional to 378,554.99, 522,276.66 and 215,195.00
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Solution
The fourth proportional to 378,554.99, 522,276.66 and 215,195.00 is: 296,895.64
Step by Step Solution
- Step 1: Write the proportion equation
378,554.99 : 522,276.66 = 215,195.00 : x - Step 2: Convert to fraction form
378,554.99/522,276.66 = 215,195.00/x - Step 3: Cross multiply
378,554.99x = 522,276.66 × 215,195.00 - Step 4: Simplify right side
378,554.99x = 112,391,323,237.32 - Step 5: Solve for x
x = 112,391,323,237.32/378,554.99 - Step 6: Final answer
x = 296,895.64
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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.