Finding the Fourth Proportional to 220,215.48, 303,887.19 and 124,722.84
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Solution
The fourth proportional to 220,215.48, 303,887.19 and 124,722.84 is: 172,111.76
Step by Step Solution
- Step 1: Write the proportion equation
220,215.48 : 303,887.19 = 124,722.84 : x - Step 2: Convert to fraction form
220,215.48/303,887.19 = 124,722.84/x - Step 3: Cross multiply
220,215.48x = 303,887.19 × 124,722.84 - Step 4: Simplify right side
220,215.48x = 37,901,673,376.42 - Step 5: Solve for x
x = 37,901,673,376.42/220,215.48 - Step 6: Final answer
x = 172,111.76
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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.