Finding the Fourth Proportional to 320,354.64, 442,104.84 and 177,112.08
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Solution
The fourth proportional to 320,354.64, 442,104.84 and 177,112.08 is: 244,423.20
Step by Step Solution
- Step 1: Write the proportion equation
320,354.64 : 442,104.84 = 177,112.08 : x - Step 2: Convert to fraction form
320,354.64/442,104.84 = 177,112.08/x - Step 3: Cross multiply
320,354.64x = 442,104.84 × 177,112.08 - Step 4: Simplify right side
320,354.64x = 78,302,107,790.47 - Step 5: Solve for x
x = 78,302,107,790.47/320,354.64 - Step 6: Final answer
x = 244,423.20
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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.