Finding the Fourth Proportional to 221,718.24, 305,959.68 and 126,224.64
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Solution
The fourth proportional to 221,718.24, 305,959.68 and 126,224.64 is: 174,183.46
Step by Step Solution
- Step 1: Write the proportion equation
221,718.24 : 305,959.68 = 126,224.64 : x - Step 2: Convert to fraction form
221,718.24/305,959.68 = 126,224.64/x - Step 3: Cross multiply
221,718.24x = 305,959.68 × 126,224.64 - Step 4: Simplify right side
221,718.24x = 38,619,650,462.52 - Step 5: Solve for x
x = 38,619,650,462.52/221,718.24 - Step 6: Final answer
x = 174,183.46
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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.