Finding the Fourth Proportional to 438,490.40, 657,541.20 and 201,711.20
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Solution
The fourth proportional to 438,490.40, 657,541.20 and 201,711.20 is: 302,477.37
Step by Step Solution
- Step 1: Write the proportion equation
438,490.40 : 657,541.20 = 201,711.20 : x - Step 2: Convert to fraction form
438,490.40/657,541.20 = 201,711.20/x - Step 3: Cross multiply
438,490.40x = 657,541.20 × 201,711.20 - Step 4: Simplify right side
438,490.40x = 132,633,424,501.44 - Step 5: Solve for x
x = 132,633,424,501.44/438,490.40 - Step 6: Final answer
x = 302,477.37
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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.