Finding the Fourth Proportional to 279,973.20, 419,959.80 and 201,241.20
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Solution
The fourth proportional to 279,973.20, 419,959.80 and 201,241.20 is: 301,861.80
Step by Step Solution
- Step 1: Write the proportion equation
279,973.20 : 419,959.80 = 201,241.20 : x - Step 2: Convert to fraction form
279,973.20/419,959.80 = 201,241.20/x - Step 3: Cross multiply
279,973.20x = 419,959.80 × 201,241.20 - Step 4: Simplify right side
279,973.20x = 84,513,214,103.76 - Step 5: Solve for x
x = 84,513,214,103.76/279,973.20 - Step 6: Final answer
x = 301,861.80
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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.