Finding the Fourth Proportional to 221,919.44, 306,226.86 and 126,420.44
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Solution
The fourth proportional to 221,919.44, 306,226.86 and 126,420.44 is: 174,447.69
Step by Step Solution
- Step 1: Write the proportion equation
221,919.44 : 306,226.86 = 126,420.44 : x - Step 2: Convert to fraction form
221,919.44/306,226.86 = 126,420.44/x - Step 3: Cross multiply
221,919.44x = 306,226.86 × 126,420.44 - Step 4: Simplify right side
221,919.44x = 38,713,334,381.02 - Step 5: Solve for x
x = 38,713,334,381.02/221,919.44 - Step 6: Final answer
x = 174,447.69
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.