Finding the Fourth Proportional to 320,770.10, 442,649.12 and 177,516.74
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Solution
The fourth proportional to 320,770.10, 442,649.12 and 177,516.74 is: 244,965.56
Step by Step Solution
- Step 1: Write the proportion equation
320,770.10 : 442,649.12 = 177,516.74 : x - Step 2: Convert to fraction form
320,770.10/442,649.12 = 177,516.74/x - Step 3: Cross multiply
320,770.10x = 442,649.12 × 177,516.74 - Step 4: Simplify right side
320,770.10x = 78,577,628,746.27 - Step 5: Solve for x
x = 78,577,628,746.27/320,770.10 - Step 6: Final answer
x = 244,965.56
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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.