Finding the Fourth Proportional to 221,449.41, 305,649.99 and 144,924.12
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Solution
The fourth proportional to 221,449.41, 305,649.99 and 144,924.12 is: 200,027.88
Step by Step Solution
- Step 1: Write the proportion equation
221,449.41 : 305,649.99 = 144,924.12 : x - Step 2: Convert to fraction form
221,449.41/305,649.99 = 144,924.12/x - Step 3: Cross multiply
221,449.41x = 305,649.99 × 144,924.12 - Step 4: Simplify right side
221,449.41x = 44,296,055,828.76 - Step 5: Solve for x
x = 44,296,055,828.76/221,449.41 - Step 6: Final answer
x = 200,027.88
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1.5x scale
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.