Finding the Fourth Proportional to 221,022.10, 331,822.23 and 131,228.74
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Solution
The fourth proportional to 221,022.10, 331,822.23 and 131,228.74 is: 197,014.75
Step by Step Solution
- Step 1: Write the proportion equation
221,022.10 : 331,822.23 = 131,228.74 : x - Step 2: Convert to fraction form
221,022.10/331,822.23 = 131,228.74/x - Step 3: Cross multiply
221,022.10x = 331,822.23 × 131,228.74 - Step 4: Simplify right side
221,022.10x = 43,544,613,146.89 - Step 5: Solve for x
x = 43,544,613,146.89/221,022.10 - Step 6: Final answer
x = 197,014.75
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.