Finding the Fourth Proportional to 438,451.40, 657,482.70 and 201,672.20
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Solution
The fourth proportional to 438,451.40, 657,482.70 and 201,672.20 is: 302,418.88
Step by Step Solution
- Step 1: Write the proportion equation
438,451.40 : 657,482.70 = 201,672.20 : x - Step 2: Convert to fraction form
438,451.40/657,482.70 = 201,672.20/x - Step 3: Cross multiply
438,451.40x = 657,482.70 × 201,672.20 - Step 4: Simplify right side
438,451.40x = 132,595,982,570.94 - Step 5: Solve for x
x = 132,595,982,570.94/438,451.40 - Step 6: Final answer
x = 302,418.88
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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.