Finding the Fourth Proportional to 221,104.08, 305,128.08 and 120,502.08
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Solution
The fourth proportional to 221,104.08, 305,128.08 and 120,502.08 is: 166,295.30
Step by Step Solution
- Step 1: Write the proportion equation
221,104.08 : 305,128.08 = 120,502.08 : x - Step 2: Convert to fraction form
221,104.08/305,128.08 = 120,502.08/x - Step 3: Cross multiply
221,104.08x = 305,128.08 × 120,502.08 - Step 4: Simplify right side
221,104.08x = 36,768,568,306.41 - Step 5: Solve for x
x = 36,768,568,306.41/221,104.08 - Step 6: Final answer
x = 166,295.30
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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.