Finding the Fourth Proportional to 438,470.40, 657,511.20 and 201,691.20
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Solution
The fourth proportional to 438,470.40, 657,511.20 and 201,691.20 is: 302,447.38
Step by Step Solution
- Step 1: Write the proportion equation
438,470.40 : 657,511.20 = 201,691.20 : x - Step 2: Convert to fraction form
438,470.40/657,511.20 = 201,691.20/x - Step 3: Cross multiply
438,470.40x = 657,511.20 × 201,691.20 - Step 4: Simplify right side
438,470.40x = 132,614,222,941.44 - Step 5: Solve for x
x = 132,614,222,941.44/438,470.40 - Step 6: Final answer
x = 302,447.38
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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.