Finding the Fourth Proportional to 221,655.17, 305,895.95 and 126,192.62
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Solution
The fourth proportional to 221,655.17, 305,895.95 and 126,192.62 is: 174,152.54
Step by Step Solution
- Step 1: Write the proportion equation
221,655.17 : 305,895.95 = 126,192.62 : x - Step 2: Convert to fraction form
221,655.17/305,895.95 = 126,192.62/x - Step 3: Cross multiply
221,655.17x = 305,895.95 × 126,192.62 - Step 4: Simplify right side
221,655.17x = 38,601,809,217.45 - Step 5: Solve for x
x = 38,601,809,217.45/221,655.17 - Step 6: Final answer
x = 174,152.54
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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.