Finding the Fourth Proportional to 414,212.68, 621,449.42 and 147,967.28
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Solution
The fourth proportional to 414,212.68, 621,449.42 and 147,967.28 is: 221,997.50
Step by Step Solution
- Step 1: Write the proportion equation
414,212.68 : 621,449.42 = 147,967.28 : x - Step 2: Convert to fraction form
414,212.68/621,449.42 = 147,967.28/x - Step 3: Cross multiply
414,212.68x = 621,449.42 × 147,967.28 - Step 4: Simplify right side
414,212.68x = 91,954,180,334.98 - Step 5: Solve for x
x = 91,954,180,334.98/414,212.68 - Step 6: Final answer
x = 221,997.50
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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.