Finding the Fourth Proportional to 279,967.20, 419,950.80 and 201,235.20
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Solution
The fourth proportional to 279,967.20, 419,950.80 and 201,235.20 is: 301,852.80
Step by Step Solution
- Step 1: Write the proportion equation
279,967.20 : 419,950.80 = 201,235.20 : x - Step 2: Convert to fraction form
279,967.20/419,950.80 = 201,235.20/x - Step 3: Cross multiply
279,967.20x = 419,950.80 × 201,235.20 - Step 4: Simplify right side
279,967.20x = 84,508,883,228.16 - Step 5: Solve for x
x = 84,508,883,228.16/279,967.20 - Step 6: Final answer
x = 301,852.80
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1.5x scale
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.