Finding the Fourth Proportional to 221,242.24, 305,314.50 and 120,640.24
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Solution
The fourth proportional to 221,242.24, 305,314.50 and 120,640.24 is: 166,483.65
Step by Step Solution
- Step 1: Write the proportion equation
221,242.24 : 305,314.50 = 120,640.24 : x - Step 2: Convert to fraction form
221,242.24/305,314.50 = 120,640.24/x - Step 3: Cross multiply
221,242.24x = 305,314.50 × 120,640.24 - Step 4: Simplify right side
221,242.24x = 36,833,214,555.48 - Step 5: Solve for x
x = 36,833,214,555.48/221,242.24 - Step 6: Final answer
x = 166,483.65
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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.