Finding the Fourth Proportional to 320,841.64, 442,756.08 and 177,598.60
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Solution
The fourth proportional to 320,841.64, 442,756.08 and 177,598.60 is: 245,083.09
Step by Step Solution
- Step 1: Write the proportion equation
320,841.64 : 442,756.08 = 177,598.60 : x - Step 2: Convert to fraction form
320,841.64/442,756.08 = 177,598.60/x - Step 3: Cross multiply
320,841.64x = 442,756.08 × 177,598.60 - Step 4: Simplify right side
320,841.64x = 78,632,859,949.49 - Step 5: Solve for x
x = 78,632,859,949.49/320,841.64 - Step 6: Final answer
x = 245,083.09
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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.