Finding the Fourth Proportional to 320,276.05, 441,961.95 and 177,027.55
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Solution
The fourth proportional to 320,276.05, 441,961.95 and 177,027.55 is: 244,287.52
Step by Step Solution
- Step 1: Write the proportion equation
320,276.05 : 441,961.95 = 177,027.55 : x - Step 2: Convert to fraction form
320,276.05/441,961.95 = 177,027.55/x - Step 3: Cross multiply
320,276.05x = 441,961.95 × 177,027.55 - Step 4: Simplify right side
320,276.05x = 78,239,441,201.72 - Step 5: Solve for x
x = 78,239,441,201.72/320,276.05 - Step 6: Final answer
x = 244,287.52
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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.