Finding the Fourth Proportional to 279,997.09, 419,995.95 and 69,635.02
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Solution
The fourth proportional to 279,997.09, 419,995.95 and 69,635.02 is: 104,452.61
Step by Step Solution
- Step 1: Write the proportion equation
279,997.09 : 419,995.95 = 69,635.02 : x - Step 2: Convert to fraction form
279,997.09/419,995.95 = 69,635.02/x - Step 3: Cross multiply
279,997.09x = 419,995.95 × 69,635.02 - Step 4: Simplify right side
279,997.09x = 29,246,426,378.17 - Step 5: Solve for x
x = 29,246,426,378.17/279,997.09 - Step 6: Final answer
x = 104,452.61
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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.