Finding the Fourth Proportional to 378,767.24, 567,751.42 and 125,980.21
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Solution
The fourth proportional to 378,767.24, 567,751.42 and 125,980.21 is: 188,837.45
Step by Step Solution
- Step 1: Write the proportion equation
378,767.24 : 567,751.42 = 125,980.21 : x - Step 2: Convert to fraction form
378,767.24/567,751.42 = 125,980.21/x - Step 3: Cross multiply
378,767.24x = 567,751.42 × 125,980.21 - Step 4: Simplify right side
378,767.24x = 71,525,439,650.74 - Step 5: Solve for x
x = 71,525,439,650.74/378,767.24 - Step 6: Final answer
x = 188,837.45
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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.