Finding the Fourth Proportional to 438,628.60, 657,432.60 and 201,995.20
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Solution
The fourth proportional to 438,628.60, 657,432.60 and 201,995.20 is: 302,757.80
Step by Step Solution
- Step 1: Write the proportion equation
438,628.60 : 657,432.60 = 201,995.20 : x - Step 2: Convert to fraction form
438,628.60/657,432.60 = 201,995.20/x - Step 3: Cross multiply
438,628.60x = 657,432.60 × 201,995.20 - Step 4: Simplify right side
438,628.60x = 132,798,229,523.52 - Step 5: Solve for x
x = 132,798,229,523.52/438,628.60 - Step 6: Final answer
x = 302,757.80
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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.