Finding the Fourth Proportional to 320,128.62, 441,765.63 and 176,885.70
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Solution
The fourth proportional to 320,128.62, 441,765.63 and 176,885.70 is: 244,095.71
Step by Step Solution
- Step 1: Write the proportion equation
320,128.62 : 441,765.63 = 176,885.70 : x - Step 2: Convert to fraction form
320,128.62/441,765.63 = 176,885.70/x - Step 3: Cross multiply
320,128.62x = 441,765.63 × 176,885.70 - Step 4: Simplify right side
320,128.62x = 78,142,022,698.49 - Step 5: Solve for x
x = 78,142,022,698.49/320,128.62 - Step 6: Final answer
x = 244,095.71
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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.