Finding the Fourth Proportional to 438,601.60, 657,392.10 and 201,968.20
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Solution
The fourth proportional to 438,601.60, 657,392.10 and 201,968.20 is: 302,717.32
Step by Step Solution
- Step 1: Write the proportion equation
438,601.60 : 657,392.10 = 201,968.20 : x - Step 2: Convert to fraction form
438,601.60/657,392.10 = 201,968.20/x - Step 3: Cross multiply
438,601.60x = 657,392.10 × 201,968.20 - Step 4: Simplify right side
438,601.60x = 132,772,299,131.22 - Step 5: Solve for x
x = 132,772,299,131.22/438,601.60 - Step 6: Final answer
x = 302,717.32
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.