Finding the Fourth Proportional to 221,444.19, 305,609.90 and 125,945.19
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Solution
The fourth proportional to 221,444.19, 305,609.90 and 125,945.19 is: 173,813.98
Step by Step Solution
- Step 1: Write the proportion equation
221,444.19 : 305,609.90 = 125,945.19 : x - Step 2: Convert to fraction form
221,444.19/305,609.90 = 125,945.19/x - Step 3: Cross multiply
221,444.19x = 305,609.90 × 125,945.19 - Step 4: Simplify right side
221,444.19x = 38,490,096,291.66 - Step 5: Solve for x
x = 38,490,096,291.66/221,444.19 - Step 6: Final answer
x = 173,813.98
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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.